331
Port
Description
Pins
Mode 4
Mode 5
Mode 6
Mode 7
Port F
•
8-bit I/O
port
PF7 /ø
When DDR = 0: input port
When DDR = 1 (after reset): ø output
When
DDR = 0 (after
reset): input
port
When
DDR = 1: ø
output
PF6 /
AS
/
LCAS
PF5 /
RD
PF4 /
HWR
PF3/
LWR
/
ADTRG
/
IRQ3
RD
,
HWR
,
LWR
outputs
ADTRG
,
IRQ3
input
When LCASS = 0:
AS
output
When RMTS2 to RMTS0 = B'001 to B'011,
CW2 = 0, and LCASS = 1:
LCAS
output
I/O port
ADTRG
,
IRQ3
input
PF2/
LCAS
/
WAIT
/
BREQO
When WAITE = 0 and BREQOE = 0 (after
reset): I/O port
When WAITE = 1 and BREQOE = 0:
WAIT
input
When WAITE = 0 and BREQOE = 1:
BREQO
input
When RMTS2 to RMTS0 = B'001 to B'011,
CW2 = 0, and LCASS = 0:
LCAS
output
I/O port
PF1/
BACK
/BUZZ
PF0/
BREQ
/
IRQ2
When BRLE = 0 (after reset): I/O port
When BRLE = 1:
BREQ
input,
BACK
output
BUZZ output,
IRQ2
input
BUZZ output
IRQ2
input
I/O port
Port G
•
5-bit I/O
port
PG4 /
CS0
When DDR = 0
*
1
: input port
When DDR = 1
*
2
:
CS0
output
I/O port
PG3 /
CS1
PG2 /
CS2
PG1 /
CS3
/
OE
/
IRQ7
When DDR = 0 (after reset): input port
When DDR = 1:
CS1
,
CS2
,
CS3
outputs
OE
output,
IRQ7
input
I/O port,
IRQ7
input
PG0 /
CAS
/
IRQ6
DRAM space set:
CAS
output
Otherwise (after reset): I/O port
IRQ6
input
I/O port,
IRQ6
input
Notes: 1. After a reset in mode 6
2. After a reset in mode 4 or 5
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...