参数资料
型号: PSD813F3-90
厂商: 意法半导体
英文描述: Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
中文描述: Flash在系统可编程(ISP)的周边8位MCU,5V的
文件页数: 60/110页
文件大小: 1685K
代理商: PSD813F3-90
PSD813F1
60/110
Enable Out
The Enable Out register can be read by the micro-
controller. It contains the output enable values for
a given port. A
1
indicates the driver is in output
mode. A
0
indicates the driver is in tri-state and
the pin is in input mode.
Ports A and B
Functionality and Structure
Ports A and B have similar functionality and struc-
ture, as shown in Figure
29
. The two ports can be
configured to perform one or more of the following
functions:
MCU I/O Mode
CPLD Output
Macrocells McellAB7-
McellAB0 can be connected to Port A or Port
B. McellBC7-McellBC0 can be connected to
Port B or Port C.
I
I
I
CPLD Input
Via the Input Macrocells (IMC).
Latched Address output
Provide latched
address output as per
Table 21., page 55
.
Address In
Additional high address inputs
using the Input Macrocells (IMC).
Open Drain/Slew Rate
pins PA3-PA0 and
PB3-PB0 can be configured to fast slew rate,
pins PA7-PA4 and PB7-PB4 can be
configured to Open Drain Mode.
Data Port
Port A to D7-D0 for 8 bit non-
multiplexed bus
Multiplexed Address/Data port for certain
types of MCU bus interfaces.
Peripheral Mode
Port A only
I
I
I
I
I
I
Figure 29. Port A and Port B Structure
I
DREG.
D
Q
D
G
Q
D
Q
D
Q
WR
WR
WR
ADDRESS
MACROCELL OUTPUTS
ENABLE PRODUCT TERM (.OE)
ALE
READ MUX
P
D
B
CPLD-INPUT
CONTROL REG.
DIR REG.
INPUT
MACROCELL
ENABLE OUT
DATA IN
SELECT
OMUX
A PORT
DATA OUT
ADDRESS
A[7:0] OR A[15:8]
AI02887
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相关代理商/技术参数
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PSD813F3-90JIT 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
PSD813F3-90JT 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs
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