Infineon Technologies TC1796 - Page 1153

TC1796
Peripheral Units (Vol. 2 of 2)
Asynchronous/Synchronous Serial Interface (ASC)
User’s Manual 19-38 V2.0, 2007-07
ASC, V2.0
PCx Coding Table
P6_IOCR8
Port 6 Input/Output Control Register 8(14
H
) Reset Value: 2020 2020
H
31 28 23 20 15 12 7 4 0
PC11 0PC100PC90PC80
rw rrwrrwrrwr
Field Bits Type Description
PC8,
PC9,
PC10,
PC11
[7:4],
[15:12],
[23:20],
[31:28]
rw Port Output Control for Port 6 Pins 8-11
1)
These bit fields determine the output port
functionality:
Port input/output control for P6.8/RXD0B
Port input/output control for P6.9/TXD0B
Port input/output control for P6.10/RXD1B
Port input/output control for P6.11/TXD1B
1) Coding of bit field see Table 19-9. Shaded bits and bit fields are “don’t care” for ASC I/O port control.
Table 19-9 PCx Coding (Class A2 Pads)
PCx[3:0] I/O Output
Characteristics
Selected Pull-up/Pull-down
Selected Output Function
0X00
B
Input – No pull device connected
0X01
B
Pull-down device connected
0X10
B
1)
1) This bit field value is default after reset.
Pull-up device connected
0X11
B
No pull device connected
1001
B
Output Push-pull Output function ALT1
1101
B
Open-drain Output function ALT1
1010
B
Push-pull Output function ALT2
1110
B
Open-drain Output function ALT2