h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 281

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Pin
PA6/A22/PS2CC/
KIN14/CIN14
PA5/A21/PS2BD/
KIN13/CIN13
Selection Method and Pin Functions
The pin function is switched as shown below according to the combination of
operating mode, the KBIOE bit in KBCR2H of the keyboard buffer controller,
the IOSE bit in SYSCR, and bit PA6DDR.
When the IICS bit in STCR is set to 1, this pin functions as a bus buffer. This
pin can always be used as the PS2CC, KIN14, or CIN14 input pin.
The pin function is switched as shown below according to the combination of
operating mode, the KBIOE bit in KBCR1H of the keyboard buffer controller,
the IOSE bit in SYSCR, and bit PA5DDR.
When the IICS bit in STCR is set to 1, this pin functions as a bus buffer. This
pin can always be used as the PS2BD, KIN13, or CIN13 input pin.
Operating
mode
KBIOE
PA6DDR
IOSE
Pin function
Operating
mode
KBIOE
PA5DDR
IOSE
Pin function
Modes 1, 2 (EXPE = 0), 3
Modes 1, 2 (EXPE = 0), 3
input
input
PA6
PA5
pin
pin
—
—
0
0
KIN14 input pin, CIN14 input pin, PS2CC input pin
KIN13 input pin, CIN13 input pin, PS2BD input pin
0
0
output
output
PA6
PA5
pin
pin
—
—
1
1
PS2CC
PS2BD
output
output
pin
pin
—
—
—
—
1
1
Rev. 3.00 Jan 18, 2006 page 253 of 1044
input
input
PA6
PA5
pin
pin
—
—
0
0
Mode 2 (EXPE = 1)
Mode 2 (EXPE = 1)
output
output
A22
A21
pin
pin
0
0
0
0
Section 8 I/O Ports
1
1
REJ09B0280-0300
output
output
PA6
PA5
pin
pin
1
1
PS2CC
PS2BD
output
output
pin
pin
—
—
—
—
1
1