D12320VF25IV Datasheet, PDF (382/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
Port Description
Pins
Mode 4^*1
Mode 5^*1
Mode 6
Mode 7
Port B • 8-bit I/O
port
PB7/A15 to PB0/A8
• Built-in
MOS input
pull-up
Address output
When DDR = I/O ports
0 (after reset):
input port
When DDR =
1: address
output
Port C • 8-bit I/O
port
PC7/A7 to PC0/A0
• Built-in
MOS input
pull-up
Address output
When DDR = I/O ports
0 (after reset):
input port
When DDR =
1: address
output
Port D • 8-bit I/O
port
PD7/D15 to PD0/D8
Data bus input/output
I/O ports
• Built-in
MOS input
pull-up
Port E • 8-bit I/O
port
PE7/D7 to PE0/D0
• Built-in
MOS input
pull-up
In 8-bit bus mode: I/O port
In 16-bit bus mode: data bus input/output
I/O ports
Port F • 8-bit I/O
port
PF7/φ
When DDR = 0: input port
When DDR = 1 (after reset): φ output
When DDR =
0 (after reset):
input port
When DDR =
1: φ output
PF6/AS
When ASOD = 1: I/O port
When ASOD = 0: AS output
I/O ports
PF5/RD
PF4/HWR
PF3/LWR
RD, HWR output
When LWROD = 1: I/O port
When LWROD = 0: LWR output
PF2/LCAS^*2/WAIT/BREQO When WAITE = 0 and BREQOE = 0 (after
reset): I/O port
When WAITE = 1, BREQOE = 0, and
WAITPS = 0, DDR = 0: WAIT input
When WAITE = 0, BREQOE = 1, and
BREQOPS = 0: BREQO output
When RMTS2 to RMTS0= B'001 to B'011,
and 16-bit access space is set: LCAS output
Rev.6.00 Sep. 27, 2007 Page 350 of 1268
REJ09B0220-0600