参数资料
型号: mPD789322
厂商: NEC Corp.
元件分类: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器与2/4/8K字节在系统可编程闪存
文件页数: 10/96页
文件大小: 482K
代理商: MPD789322
Preliminary Product Information U14673EJ1V0PM00
18
PD789322,789324,789326,789327
4.3.3 Special function registers (SFRs)
Special function registers are used as peripheral hardware mode registers and control registers, and are mapped
in the 256-byte space from FF00H to FFFFH.
Note that the bit number of a bit name that is a reserved word in the RA78K0S and defined under the header file
“sfrbit.h” in the CC78K0S appears enclosed in a circle in the register formats. Refer to the register formats in 5.
PERIPHERAL HARDWARE FUNCTIONS.
Table 4-1. Special Function Registers (1/2)
Bit Unit for Manipulation
Address
Special Function Register (SFR) Name
Symbol
R/W
1 Bit
8 Bits
16 Bits
After
Reset
FF00H
Port 0
P0
√√
FF01H
Port 1
P1
√√
FF02H
Port 2
P2
√√
FF03H
port 4
P4
√√
FF05H
Port 6
P6
√√
FF08H
Port 8
P8
√√
00H
FF20H
Port mode register 0
PM0
√√
FF21H
Port mode register 1
PM1
√√
FF22H
Port mode register 2
PM2
√√
FF24H
Port mode register 4
PM4
√√
FF26H
Port mode register 6
PM6
√√
FF28H
Port mode register 8
PM8
√√
FFH
FF32H
Pull-up resistor option register B2
PUB2
√√
FF4AH
Watch timer mode control register
WTM
√√
FF58H
Port function register 8
PF8
R/W
√√
00H
FF63H
8-bit compare register 30
CR30
W
Undefined
FF64H
8-bit timer counter 30
TM30
R
FF65H
8-bit timer mode control register 30
TMC30
R/W
√√
00H
FF66H
8-bit compare register 40
CR40
FF67H
8-bit H width compare register 40
CRH40
W
Undefined
FF68H
8-bit timer counter 40
TM40
R
FF69H
8-bit timer mode control register 40
TMC40
R/W
√√
FF6AH
Carrier generator output control register 40
TCA40
W
FF72H
Serial operation mode register 10
CSIM10
√√
00H
FF74H
Transmission/reception shift register 10
SIO10
√√
Undefined
FFB0H
LCD display mode register 0
LCDM0
√√
FFB2H
LCD clock control register 0
LCDC0
√√
00H
FFDDH Power-on-clear register 1
POCF1
R/W
√√
00H
Note
Note This value is 04H only after a power-on-clear reset.
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