Rev. 2.0, 11/00, page 251 of 1037
11.4.3
Pin Functions
This section describes the port 2 pin functions and their selection methods.
(1) P27/SCK2
P27/SCK2 is switched as shown below according to the PMR27 bit in PMR2, the PCR27 bit
in PCR2, and the SCK2 to SCK0 bits in serial control register 2 (SCR2).
PMR27
PCR27
CKS2 to CKS0
Pin Function
0
P27 input pin
0
1
*
P27 output pin
Other than 111
SCK2 output pin
1
*
111
SCK2 input pin
Note:
*
Don't care.
(2) P26/SO2
P26/SO2 is switched as shown below according to the PMR26 bit in PMR2 and the PCR26
bit in PCR2.
PMR26
PCR26
Pin Function
0
P26 input pin
0
1
P26 output pin
1
*
SO2 output pin
Note:
*
Don't care.
(3) P25/SI2
P25/SI2 is switched as shown below according to the PMR25 bit in PMR2 and the PCR25 bit
in PCR2.
PMR25
PCR25
Pin Function
0
P25 input pin
0
1
P25 output pin
1
*
SI2 input pin
Note:
*
Don't care.
Summary of Contents for Hitachi H8S/2191
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