Hitachi H8S/2678 Series Reference Manual page 203

Port Description
Port 5 • 4-bit I/O
port
• 4-bit input
port
Port 6 • 6-bit I/O
port
Port 7 • 6-bit I/O
port
186
Pins
P57/AN15/DA3/IRQ7
P56/AN14/DA2/IRQ6
P55/AN13/IRQ5
P54/AN12/IRQ4
P53/ADTRG/IRQ3
P52/SCK2/IRQ2
P51/RxD2/IRQ1
P50/TxD2/IRQ0
P65/TMO1/DACK1/
IRQ13
P64/TMO0/DACK0/
IRQ12
P63/TMCI1/TEND1/
IRQ11
P62/TMCI0/TEND0/
IRQ10
P61/TMRI1/DREQ1/
IRQ9
P60/TMRI0/DREQ0/
IRQ8
P75/DACK1/EDACK1
P74/DACK0/EDACK0
P73/TEND1/ETEND1
P72/TEND0/ETEND0
P71/DREQ1/EDREQ1
P70/DREQ0/EDREQ0
Modes Mode
1, 2, 5, 6
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)
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)
• 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)
• 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)
4
• 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)
Mode
7