Datasheet

Section 8 I/O Ports
Rev. 3.00 Mar 21, 2006 page 168 of 788
REJ09B0300-0300
Table 8.1 Port Functions of H8S/2140B, H8S/2141B, H8S/2145B, and H8S/2148B
Modes 2 and 3
Port Description Mode 1
(EXPE = 1) (EXPE = 0)
I/O
Status
Port 1 General I/O port also
functioning as address
output and PWM output
pins
A7
A6
A5
A4
A3
A2
A1
A0
A7/P17/PW7
A6/P16/PW6
A5/P15/PW5
A4/P14/PW4
A3/P13/PW3
A2/P12/PW2
A1/P11/PW1
A0/P10/PW0
P17/PW7
P16/PW6
P15/PW5
P14/PW4
P13/PW3
P12/PW2
P11/PW1
P10/PW0
On-chip
input pull-
up MOSs
Port 2 General I/O port also
functioning as address
output pin, PWM output
pin, and timer
connection output pin
A15
A14
A13
A12
A11
A10
A9
A8
A15/P27/PW15/
CBLANK
A14/P26/PW14
A13/P25/PW13
A12/P24/PW12
A11/P23/PW11
A10/P22/PW10
A9/P21/PW9
A8/P20/PW8
P27/PW15/CBLANK
P26/PW14
P25/PW13
P24/PW12
P23/PW11
P22/PW10
P21/PW9
P20/PW8
On-chip
input pull-
up MOSs
Port 3 General I/O port also
functioning as data bus
input/output, XBS data
bus input/output, and
LPC input/output pins
D15
D14
D13
D12
D11
D10
D9
D8
P37/HDB7/SERIRQ
*
P36/HDB6/LCLK
*
P35/HDB5/LRESET
*
P34/HDB4/LFRAME
*
P33/HDB3/LAD3
*
P32/HDB2/LAD2
*
P31/HDB1/LAD1
*
P30/HDB0/LAD0
*
On-chip
input pull-
up MOSs