W6691CD WINBOND [Winbond], W6691CD Datasheet - Page 81

• Manufacturer Part Number: W6691CD
• Description: ISDN S/T Interface Transceiver
• Manufacturer: WINBOND [Winbond]

8.9.3 Peripheral Control Register PCR
Value after reset: 00H
Only for PLCC 68 pins :
OE3
0 : Pin IO3's output driver is disabled and input driver is enabled
1 : Pin IO3's output driver is enabled.
Note: The ACLT2: INT1M bit should be set to “0”, INT1/IO3 pin can be as IO. Otherwise, It is configured as
interrupt input.
OE2
0 : Pin IO2's output driver is disabled and input driver is enabled
1 : Pin IO2's output driver is enabled.
Note: The ACLT2: INT0M bit should be set to “0”, INT0/IO2 pin can be as IO. Otherwise, It is configured as
interrupt input.
OE1
0 : Pin IO1's output driver is disabled and input driver is enabled
1 : Pin IO1's output driver is enabled.
OE0
0 : Pin IO0's output driver is disabled and input driver is enabled
1 : Pin IO0's output driver is enabled.
7
0
Direction Control for IO3
Direction Control for IO2
Direction Control for IO1
Direction Control for IO0
6
0
5
0
4
0
Read/Write
OE3
3
81
OE2
Address 3AH
2
Preliminary W6691
OE1
Publication Release Date: Sep 2001
1
OE0
0
Revision 1.1