h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 269

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

Notes: 1. When bit LSMIE is set to 1 in HICR0, bits HI12E and PB0DDR should be cleared to 0.
Operating
Mode
LSMIE
HI12E
CS3E
ABW
PB0DDR
Pin
Function
PB0/D0/WUE0/HIRQ3/LSMI *
The pin function is switched as shown below according to the combination of the operating
mode, the HI12E and CS3E bits in SYSCR2, the LSMIE bits in HICR0 of host interface
(LPC), the ABW bit in WSCR, and the PB0DDR bit.
2.
3.
4.
Except when used as a data bus pin, this pin can always be used as the WUE0 input
pin. The HIRQ3 output pin and LSMI I/O pin can only be used in mode 2 or 3 (EXPE =
0).
In mode 1, 2, 3 (EXPE = 1), clear the LSMIE bit to 0.
Not supported by the H8S/2148B and H8S/2145B (5-V version).
D0 I/O pin
—
0
Modes 1, 2, 3 (EXPE = 1)
input pin
PB0
0 *
—
—
0
3
4
1
output pin
PB0
1
input pin
Either cleared to 0
WUE0 input pin *
PB0
0
Rev. 3.00 Mar 21, 2006 page 215 of 788
—
output pin
Mode 2, 3 (EXPE = 0)
PB0
LSMI input pin *
0
1
2
output pin
HIRQ3
Section 8 I/O Ports
—
—
1
1
REJ09B0300-0300
2
output pin
LSMI *
0 *
0 *
—
—
1
1
1
4