st62t25c STMicroelectronics, st62t25c Datasheet - Page 35

• Manufacturer Part Number: st62t25c
• Description: 8-bit Otp/eprom Mcus With A/d Converter, Oscillator Safeguard, Safe Reset And 28 Pins
• Manufacturer: STMicroelectronics

I/O PORTS (Cont’d)
4.1.3 I/O Port Option Registers
ORA/B/C (CCh PA, CDh PB, CEh PC)
Read/Write
Bit 7-0 = Px7 - Px0: Port A, B and C Option Regis-
ter bits.
4.1.4 I/O Port Data Direction Registers
DDRA/B/C (C4h PA, C5h PB, C6h PC)
Read/Write
Bit 7-0 = Px7 - Px0: Port A, B and C Data Direction
Registers bits.
Px7
Px7
7
7
Px6
Px6
Px5
Px5
Px4
Px4
Px3
Px3
Px2
Px2
Px1
Px1
Px0
Px0
0
0
4.1.5 I/O Port Data Registers
DRA/B/C (C0h PA, C1h PB, C2h PC)
Read/Write
Bit 7-0 = Px7 - Px0: Port A, B and C Data Regis-
ters bits.
Note: X = Don’t care
Px7
7
Px6
Px5
Px4
ST62T15C/T25C/E25C
Px3
Px2
Px1
35/70
Px0
0
35