h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 307

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

9.10.3
PAPIN indicates the pin states.
Note:
9.10.4
The relationship between the operating mode, register setting values, and pin functions are as
follows. In the tables, the symbol “—” stands for Don't care.
Extended Mode (Mode 2):
Note: Even if SSE = 0, PA1DDR = 1 and CPCSE = 1, pin PA1 can be used as an output pin only
Bit
7 to 2
1
0
SSE
C/A
CKE1
PA1DDR
Address 13
Pin function
PA1/A17/KIN9/SSE2I
The function of port A pins is switched as shown below according to the combination of the
SSE bit in SEMR of SCI_2, the C/A bit in SMR, the CKE1 bit in SCR, the CS256E and IOSE
bits in SYSCR, the ADFULLE bit in BCR2 of BSC, and the PA1DDR bit.
Address 13 in the following table is expressed by the following logical expression:
When the KMIM9 bit in KMIMRA of the interrupt controller is cleared to 0, this pin can be
used as the KIN9 input pin. To use this pin as the KIN9 input pin, clear the PA1DDR bit to 0.
when IOSE = 1.
* The initial values of bits 1 and 0 are determined according to the pin states of PA1 and
Bit Name
—
PA1PIN
PA0PIN
Port A Input Data Register (PAPIN)
Pin Functions
PA0.
Address 13 = 1:ADFULLE CS256E IOSE
PA1 input pin
Initial Value
All 1
Undefined *
Undefined *
0
1
R/W
R
R
R
PA1 output pin
—
—
0
1
Reserved
These bits are always read as 1.
When a PAPIN read is performed, the pin states
are always read.
Description
KIN9 input pin
Rev. 3.00 Jan 25, 2006 page 255 of 872
A17 output pin
1
0
Section 9 I/O Ports
REJ09B0286-0300
SSE2I
—
—
1
1
1