186
Port
Description
Pins
Modes
1, 2, 5, 6
Mode
4
Mode
7
Port 5
•
4-bit I/O
port
•
4-bit input
port
P57/AN15/DA3/
IRQ7
P56/AN14/DA2/
IRQ6
P55/AN13/
IRQ5
P54/AN12/
IRQ4
4-bit input port also functioning as A/D converter analog inputs
(AN15 to AN12), D/A converter analog outputs (DA3, DA2), and
interrupt input pins (
IRQ7
to
IRQ4
)
P53/
ADTRG
/
IRQ3
P52/SCK2/
IRQ2
P51/RxD2/
IRQ1
P50/TxD2/
IRQ0
4-bit I/O port also functioning as A/D converter input pin
(
ADTRG
), SCI (channel 2) I/O pins (TxD2, RxD2, SCK2), and
interrupt input pins (
IRQ3
to
IRQ0
)
Port 6
•
6-bit I/O
port
P65/TMO1/
DACK1
/
IRQ13
P64/TMO0/
DACK0
/
IRQ12
P63/TMCI1/
TEND1
/
IRQ11
P62/TMCI0/
TEND0
/
IRQ10
P61/TMRI1/
DREQ1
/
IRQ9
P60/TMRI0/
DREQ0
/
IRQ8
•
When DMACS = 0 (after reset): 6-bit I/O port also functioning
as DMA controller I/O pins (
DACK1
,
DACK0
,
TEND1
,
TEND0
,
DREQ1
,
DREQ0
), 8-bit timer (channels 0 and 1) pins (TMO1,
TMO0, TMCI1, TMCI0, TMRI1, TMRI0), and interrupt input pins
(
IRQ13
to
IRQ8
)
•
When DMACS = 1: 6-bit I/O port also functioning as 8-bit timer
(channels 0 and 1) pins (TMO1, TMO0, TMCI1, TMCI0, TMRI1,
TMRI0) and interrupt input pins (
IRQ13
to
IRQ8
)
Port 7
•
6-bit I/O
port
P75/
DACK1
/
EDACK1
P74/
DACK0
/
EDACK0
P73/
TEND1
/
ETEND1
P72/
TEND0
/
ETEND0
P71/
DREQ1
/
EDREQ1
P70/
DREQ0
/
EDREQ0
•
When DMACS = 0 (after
reset): 6-bit I/O port also
functioning as EXDMA
controller I/O pins (
EDACK1
,
EDACK0
,
ETEND1
,
ETEND0
,
EDREQ1
,
EDREQ0
)
•
When DMACS = 1: 6-bit I/O
port also functioning as
EXDMA controller I/O pins
(
EDACK1
,
EDACK0
,
ETEND1
,
ETEND0
,
EDREQ1
,
EDREQ0
) and DMA controller
I/O pins (
DACK1
,
DACK0
,
TEND1
,
TEND0
,
DREQ1
,
DREQ0
)
•
When EXPE = 0 and DMACS
= 0 (after reset): 6-bit I/O port
•
When EXPE = 0 and DMACS
= 1: 6-bit I/O port also
functioning as DMA controller
I/O pins (
DACK1
,
DACK0
,
TEND1
,
TEND0
,
DREQ1
,
DREQ0
)
•
When EXPE = 1 and DMACS
= 0: 6-bit I/O port also
functioning as EXDMA
controller I/O pins (
EDACK1
,
EDACK0
,
ETEND1
,
ETEND0
,
EDREQ1
,
EDREQ0
)
•
When EXPE = 1 and DMACS
= 1: 6-bit I/O port also
functioning as EXDMA
controller I/O pins (
EDACK1
,
EDACK0
,
ETEND1
,
ETEND0
,
EDREQ1
,
EDREQ0
) and
DMA controller I/O pins
(
DACK1
,
DACK0
,
TEND1
,
TEND0
,
DREQ1
,
DREQ0
)
Summary of Contents for H8S/2670
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