HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 381

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Port F • 8-bit I/O
Port G • 5-bit I/O
Notes: 1. Only modes 4 and 5 are provided in the ROMless version.
Port Description
2. The DACK1, DACK0, TEND1, DREQ1, TEND0, DREQ0 and LCAS are not supported
3. After a reset in mode 6.
4. After a reset in mode 4 or 5.
port
port
in the H8S/2321.
PF
PF
PG
PG
PG
PG
PG
1
0
4
3
2
1
0
/BACK
/BREQ
/CS
/CS
/CS
/CS
/CAS *
0
1
2
3
2
Pins
When BRLE = 0 (after reset): I/O port
When BRLE = 1: BREQ input, BACK output
When DDR = 0 *
When DDR = 1 *
When DDR = 0 (after reset): input port
When CS167E = 0 and DDR = 1: output port
When CS167E = 1 and DDR = 1: CS1
output
When DDR = 0 (after reset): input port
When CS25E = 0 and DDR = 1: output port
When CS25E = 1 and DDR = 1: CS2 output
When DDR = 0 (after reset): input port
When CS25E = 0 and DDR = 1: output port
When CS25E = 1 and DDR = 1: CS3 output
DRAM space set: CAS output
Otherwise (after reset): I/O port
Mode 4 *
1
Rev.6.00 Sep. 27, 2007 Page 351 of 1268
3
4
: input port
: CS0 output
Mode 5 *
1
Mode 6
Section 9 I/O Ports
REJ09B0220-0600
I/O ports
I/O ports
Mode 7