HD6433044 Datasheet, PDF (301/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

9.12.3 Pin Functions
Table 9-21 describes the selection of pin functions.
Table 9-21 Port B Pin Functions
Pin
PB₇/
TP₁₅/
DREQ₁/
ADTRG
Pin Functions and Selection Method
DMAC channel 1 settings (bits DTS2/1/0A and DTS2/1/0B in DTCR1A and DTCR1B),
bit TRGE in ADCR, bit NDER15 in NDERB, and bit PB₇DDR in PBDDR select the
pin function as follows
PB₇DDR
NDER15
Pin function
0
—
PB₇ input
1
0
PB₇ output
DREQ₁ input^*1
ADTRG input^*2
1
1
TP₁₅ output
Notes: 1. DREQ₁ input under DMAC channel 1 settings (1) in the table below.
2. ADTRG input when TRGE = 1.
DMAC
channel
1 settings
(2)
(1)
(2)
(1)
(2)
(1)
DTS2A, DTS1A
Not both 1
Both 1
DTS0A
—
0
0
1
1
1
DTS2B
0
1
1
0
1
0
1
1
DTS1B
—
0
1
—
—
—
0
1
288