ST62T80B Datasheet, PDF (39/78 Pages) STMicroelectronics – 8-BIT OTP/EPROM MCU WITH LCD DRIVER, EEPROM AND A/D CONVERTER

ST62T80B/E80B
I/O PORTS (Cont’d)
4.1.6 I/O Port Option Registers
ORA/B/C (CCh PA, CEh PB, CFh PC)
Read/Write
7
0
Px7 Px6 Px5 Px4 Px3 Px2 Px1 Px0
4.1.8 I/O Port Data Registers
DRA/B/C (C0h PA, C1h PB, C3h PC)
Read/Write
7
0
Px7 Px6 Px5 Px4 Px3 Px2 Px1 Px0
Bit 7-0 = Px7 - Px0: Port A, B, C Option Register
bits.
4.1.7 I/O Port Data Direction Registers
DDRA/B/C (C4h PA, C5h PB, C6h PC)
Read/Write
7
0
Px7 Px6 Px5 Px4 Px3 Px2 Px1 Px0
Bit 7-0 = Px7 - Px0: Port A, B, C Data Registers
bits.
Bit 7-0 = Px7 - Px0: Port A, B, C Data Direction
Registers bits.
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