h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 268

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 8 I/O Ports
Notes: 1. Except when used as a data bus pin, this pin can always be used as the WUE2 input
Notes: 1. When bit LSCIE is set to 1 in HICR0, bits HI12E and PB1DDR should be cleared to 0.
Rev. 3.00 Mar 21, 2006 page 214 of 788
REJ09B0300-0300
Operating
Mode
HI12E
CS3E
ABW
PB2DDR
Pin
Function
Operating
Mode
LSCIE
HI12E
CS4E
ABW
PB1DDR
Pin
Function
PB1/D1/WUE1/HIRQ4/LSCI *
The pin function is switched as shown below according to the combination of the operating
mode, the HI12E and CS4E bits in SYSCR2, the LSCIE bits in HICR0 of host interface (LPC),
the ABW bit in WSCR, and the PB1DDR bit.
2. Not supported by the H8S/2148B and H8S/2145B (5-V version).
2. Except when used as a data bus pin, this pin can always be used as the WUE1 input
3. In mode 1, 2, 3 (EXPE = 1), clear the LSCIE bit to 0.
4. Not supported by the H8S/2148B and H8S/2145B (5-V version).
pin. The CS3 input pin can only be used in mode 2 or 3 (EXPE = 0).
pin. The HIRQ4 output pin and LSCI I/O pin can only be used in mode 2 or 3 (EXPE =
0).
D1 I/O pin
D2 I/O pin
Mode 1 and Modes 2, 3 (EXPE = 1)
—
0
Modes 1, 2, 3 (EXPE = 1)
—
0
input pin
PB1
input pin
0 *
—
—
0
PB2
3
0
—
—
4
1
output pin
1
PB1
1
output pin
PB2
1
input pin
WUE1 input pin *
Either cleared to 0
PB1
WUE2 input pin *
0
input pin
PB2
—
Either cleared to 0
0
output pin
Mode 2, 3 (EXPE = 0)
Modes 2, 3 (EXPE = 0)
PB1
LSCI input pin *
0
1
2
—
*
1
4
output pin
output pin
PB2
HIRQ4
1
—
—
1
1
2
output pin
input pin
LSCI *
CS3
0 *
0 *
—
—
—
—
1
1
1
1
1
4