- 您现在的位置：买卖IC网 > PDF目录367728 > P83C576EHPN (NXP SEMICONDUCTORS) 80C51 8-bit microcontroller family 8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators, failure detect circuitry, watchdog timer PDF资料下载
参数资料
| 型号： | P83C576EHPN |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 80C51 8-bit microcontroller family 8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators, failure detect circuitry, watchdog timer |
| 中文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | 0.600 INCH, PLASTIC, MO-015AJ, SOT-129-1, DIP-40 |
| 文件页数： | 11/46页 |
| 文件大小： | 447K |
| 代理商： | P83C576EHPN |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页
Philips Semiconductors
Product specification
83C576/87C576
80C51 8-bit microcontroller family
8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators,
failure detect circuitry, watchdog timer
1998 Jun 04
11
also can only be cleared by software. The PCA interrupt system
shown in Figure 4.
Each module in the PCA has a special function register associated
with it. These registers are: CCAPM0 for module 0, CCAPM1 for
module 1, etc. (see Figure 7). The registers contain the bits that
control the mode that each module will operate in. The ECCF bit
(CCAPMn.0 where n=0, 1, 2, 3, or 4 depending on the module)
enables the CCF flag in the CCON SFR to generate an interrupt
when a match or compare occurs in the associated module. PWM
(CCAPMn.1) enables the pulse width modulation mode. The TOG
bit (CCAPMn.2) when set causes the CEX output associated with
the module to toggle when there is a match between the PCA
counter and the module’s capture/compare register. The match bit
MAT (CCAPMn.3) when set will cause the CCFn bit in the CCON
register to be set when there is a match between the PCA counter
and the module’s capture/compare register.
The next two bits CAPN (CCAPMn.4) and CAPP (CCAPMn.5)
determine the edge that a capture input will be active on. The CAPN
bit enables the negative edge, and the CAPP bit enables the
positive edge. If both bits are set both edges will be enabled and a
capture will occur for either transition. The last bit in the register
ECOM (CCAPMn.6) when set enables the comparator function.
Figure 8 shows the CCAPMn settings for the various PCA functions.
There are two additional registers associated with each of the PCA
modules. They are CCAPnH and CCAPnL and these are the
registers that store the 16-bit count when a capture occurs or a
compare should occur. When a module is used in the PWM mode
these registers are used to control the duty cycle of the output.
PCA Capture Mode
To use one of the PCA modules in the capture mode either one or
both of the CCAPM bits CAPN and CAPP for that module must be
set. The external CEX input for the module (on port 2) is sampled for
a transition. When a valid transition occurs the PCA hardware loads
the value of the PCA counter registers (CH and CL) into the
module’s capture registers (CCAPnL and CCAPnH). If the CCFn bit
for the module in the CCON SFR and the ECCFn bit in the CCAPMn
SFR are set then an interrupt will be generated. Refer to Figure 9.
16-bit Software Timer Mode
The PCA modules can be used as software timers by setting both
the ECOM and MAT bits in the modules CCAPMn register. The PCA
timer will be compared to the module’s capture registers and when a
match occurs an interrupt will occur if the CCFn (CCON SFR) and
the ECCFn (CCAPMn SFR) bits for the module are both set (see
Figure 10).
High Speed Output Mode
In this mode the CEX output (on port 2) associated with the PCA
module will toggle each time a match occurs between the PCA
counter and the module’s capture registers. To activate this mode
the TOG, MAT, and ECOM bits in the module’s CCAPMn SFR must
be set (see Figure 11).
Pulse Width Modulator Mode
All of the PCA modules can be used as PWM outputs. Figure 12
shows the PWM function. The frequency of the output depends on
the source for the PCA timer. All of the modules will have the same
frequency of output because they all share the PCA timer. The duty
cycle of each module is independently variable using the module’s
capture register CCAPLn. When the value of the PCA CL SFR is
less than the value in the module’s CCAPLn SFR the output will be
low, when it is equal to or greater than the output will be high. When
CL overflows from FF to 00, CCAPLn is reloaded with the value in
CCAPHn. the allows updating the PWM without glitches. The PWM
and ECOM bits in the module’s CCAPMn register must be set to
enable the PWM mode.
PCA Interrupt System
The PCA on most 80C51 family devices provides a single interrupt
source, EC (IE.6). The 8xC576 expands the flexibility of the PCA by
providing additional interrupt sources for each of the five PCA
modules, EC0 (IE1.0) through EC4 (IE1.4), in addition to the original
interrupt source EC (IE.6). Any of these sources can be enabled at
any time. It is possible for both a module source (EC0 through EC4)
to be enabled at the same time that the single source, EC, is
enabled. In this case, a module event will generate an interrupt for
both the module source and the single source, EC.
MODULE FUNCTIONS:
16-BIT CAPTURE
16-BIT TIMER
16-BIT HIGH SPEED OUTPUT
8-BIT PWM
WATCHDOG TIMER (MODULE 4 ONLY)
MODULE 0
MODULE 1
MODULE 2
MODULE 3
MODULE 4
P2.0/CEX0
P2.1/CEX1
P2.2/CEX2
P2.3/CEX3
P2.6/CEX4
16 BITS
PCA TIMER/COUNTER
TIME BASE FOR PCA MODULES
16 BITS
SU00578
Figure 2.
Programmable Counter Array (PCA)
相关PDF资料 |
PDF描述 |
|---|---|
| P87C576EHPN | 80C51 8-bit microcontroller family 8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators, failure detect circuitry, watchdog timer |
| P83C576EBBB | 80C51 8-bit microcontroller family 8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators, failure detect circuitry, watchdog timer |
| P87C576EBBB | 80C51 8-bit microcontroller family 8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators, failure detect circuitry, watchdog timer |
| P87C576EBAA | 80C51 8-bit microcontroller family 8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators, failure detect circuitry, watchdog timer |
| P83C576EBPN | 80C51 8-bit microcontroller family 8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators, failure detect circuitry, watchdog timer |
相关代理商/技术参数 |
参数描述 |
|---|---|
| P83C591 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller with CAN controller |
| P83C591SFA | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller with CAN controller |
| P83C591SFB | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller with CAN controller |
| P83C591VFA | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller with CAN controller |
| P83C591VFB | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller with CAN controller |
发布紧急采购，3分钟左右您将得到回复。