UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 137

8BIT MCU, 4K FLASH, 256B RAM, 78F9222

UPD78F9222MC(T)-5A4-A

Manufacturer Part Number
UPD78F9222MC(T)-5A4-A
Description
8BIT MCU, 4K FLASH, 256B RAM, 78F9222
Manufacturer
NEC
Datasheet

Specifications of UPD78F9222MC(T)-5A4-A

Controller Family/series
UPD78
No. Of I/o's
17
Ram Memory Size
256Byte
Cpu Speed
10MHz
No. Of Timers
4
No. Of
RoHS Compliant
Core Size
8bit
Program Memory Size
4KB
Oscillator Type
External, Internal

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(2) Port mode register 4 (PM4)
This register sets port 4 input/output in 1-bit units.
When using the P42/TOH1 pin for timer output, clear PM42 and the output latch of P42 to 0.
PM4 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to FFH.
Address: FF24H
Symbol
PM4
PM4n
7
1
0
1
After reset: FFH
Output mode (output buffer on)
Input mode (output buffer off)
6
1
Figure 8-5. Format of Port Mode Register 4 (PM4)
PM45
5
R/W
CHAPTER 8 8-BIT TIMER H1
P4n pin I/O mode selection (n = 0 to 5)
User’s Manual U16898EJ5V0UD
PM44
4
PM43
3
PM42
2
PM41
1
PM40
0
137

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