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CHAPTER 12 PORT FUNCTIONS
User’s Manual U12688EJ4V0UM00
376
(b) Port 2 mode control register (PMC2)
This register can be read/written in 8- or 1-bit units. However, bit 0 is fixed to 1 by hardware, so writing 0
to this bit is ignored. Bit 1 is fixed to 0, so writing 1 to this bit is ignored.
Address
FFFFF044H
7
PMC27
PMC2
6
PMC26
5
PMC25
4
PMC24
3
PMC23
2
PMC22
1
0
0
1
After reset
01H
Bit Position
Bit Name
Function
7
PMC27
Port Mode Control
Sets operation mode of P27 pin.
0: Input/output port mode
1: SCK1 input/output mode
6
PMC26
Port Mode Control
Sets operation mode of P26 pin.
0: Input/output port mode
1: RXD1/SI1 input mode
5
PMC25
Port Mode Control
Sets operation mode of P25 pin.
0: Input/output port mode
1: TXD1/SO1 output mode
4
PMC24
Port Mode Control
Sets operation mode of P24 pin.
0: Input/output port mode
1: SCK0 input/output mode
3
PMC23
Port Mode Control
Sets operation mode of P23 pin.
0: Input/output port mode
1: RXD0/SI0 input mode
2
PMC22
Port Mode Control
Sets operation mode of P22 pin.
0: Input/output port mode
1: TXD0/SO0 output mode
Remark
UART0 and CSI0, and UART1 and CSI1 share the same pins respectively. Either one of these is
selected according to the ASIM00 and ASIM10 registers (refer to 10.2.3 Control registers).
Содержание V850E/MS1 UPD703100
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