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参数资料
| 型号： | M37735EHLXXXHP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件页数： | 15/15页 |
| 文件大小： | 653K |
| 代理商： | M37735EHLXXXHP |
MITSUBISHI MICROCOMPUTERS
M37735EHLXXXHP
PROM VERSION OF M37735MHLXXXHP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
6
Fig. 1 Bit configuration of oscillation circuit control register 1 (corresponding to Figure 63 in data sheet “M37735MHBXXXFP”)
Fig. 2 How to write data in oscillation circuit control register 1 (identical with Figure 64 in data sheet “M37735MHBXXXFP”)
Writing data “8016” (LDM instruction)
Reset clock prescaler
Writing data “5516” (LDM instruction)
Writing data “0Y16” (LDM instruction)
CC2 to CC0 selection bits
How to reset clock prescaler
How to write in CC2 to CC0 selection bits
Note. “Y” is the sum of bits to be set. For example, when
setting bits 2 and 1 to “1”, “Y” becomes “6”.
Next instruction
Note. Write to the oscillation circuit control
register 1 as the flow shown in Figure 2.
Oscillation circuit control register 1
Main clock division selection bit
0 : Main clock is divided by 2.
1 : Main clock is not divided by 2.
Main clock external input selection bit
0 : Main-clock oscillation circuit is operating by itself.
Watchdog timer is used at returning from STP state.
1 : Main-clock is input externally.
Watchdog timer is not used at returning from STP state.
Sub clock external input selection bit
0 : Sub-clock oscillation circuit is operating by itself.
Port P76 functions as XCOUT pin.
Watchdog timer is used at returning from STP state.
1 : Sub-clock is input externally.
Port P76 functions as I/O port.
Watchdog timer is not used at returning from STP state.
0 : Always “0” (This bit is “1” at reset, so that write “0” to this bit .)
0 : Always “0” (However, writing data “5516” shown in Figure 2 is possible.)
Clock prescaler reset bit
Address
6F16
CC0
CC1
CC2
00
76543
2
1
0
BASIC FUNCTION BLOCKS
The M37735EHLXXXHP has the same functions as the
M37735MHBXXXFP except for the following :
(1) The built-in ROM is PROM.
(2) The status of bit 3 of the oscillation circuit control register 1 (address
6F16) at a reset is different.
(3) The usage condition of bit 3 of the oscillation circuit control register
1 is different.
(4) Part of the processor mode selection method is different.
Accordingly, refer to the basic function blocks description in the
M37735MHBXXXFP except for Figure 1 (bit configuration of
oscillation circuit control register 1), Figure 3 (microcomputer
internal status during reset), and Table 1 (microprocessor mode
selection method).
In the M37735EHLXXXHP, bit 3 of the oscillation circuit control
register 1 must be “0”. (Refer to Figure 1.) Bit 3 is “1” at a reset.
Accordingly, write “0” to bit 3 in the single-chip mode after reset.
Figure 2 shows how to write data in oscillation circuit control register 1.
In the M37735EHLXXXHP, the microprosessor mode cannot be
selected by connecting the CNVSS pin to VCC. Connect the CNVSS
pin to VSS and start the microcomputer operating from the single-
chip mode.
Table 1. Relationship between CNVSS pin input level and processor
modes
CNVSS
VSS
Mode
qSingle-chip
qMemory expansion
qMicroprocessor
Description
Single-chip mode upon starting
after reset. Each mode can be
selected by changing the processor
mode bits by software.
相关PDF资料 |
PDF描述 |
|---|---|
| M37736EHLXXXHP | 16-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQFP100 |
| M37736M4BXXXGP | 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP100 |
| M37736M4LXXXHP | 16-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP100 |
| M37736MHLXXXHP | 16-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP100 |
| M37753FFCFP | 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP80 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M37735M4B | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37735M4BXXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37735M4L | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37735M4LXXXHP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37735MHB | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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