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Section 18 Pin Function Controller
18.1
Overview
The pin function controller (PFC) is composed of registers for selecting the function of
multiplexed pins and the direction of input/output. Table 18.1 lists the SH7040 Series’s
multiplexed pins. The multiplex pin functions have restrictions dependent on the operating mode.
Table 18.2 lists the pin functions and initial values for each operating mode.
Table 18.1
Multiplexed Pins
Port
Function 1
(Related Module)
Function 2
(Related Module)
Function 3
(Related Module)
Function 4
(Related Module)
FP-
112
FP-
144
TFP-
120
A
PA23 I/O (port)
WRHH
output (BSC) —
—
—
1
—
PA22 I/O (port)
WRHL
output (BSC) —
—
—
3
—
PA21 I/O (port)
CASHH
output (BSC) —
—
—
4
—
PA20 I/O (port)
CASHL
output (BSC) —
—
—
29
—
PA19 I/O (port)
BACK
output (BSC)
DRAK1 output
(DMAC)
—
—
30
—
PA18 I/O (port)
BREQ
input (BSC)
DRAK0 output
(DMAC)
—
—
33
—
PA17 /O (port)
WAIT
input (BSC)
—
—
—
101 —
PA16 I/O (port)
AH
output (BSC)
—
—
—
100 —
PA15 I/O (port)
CK output (CPG)
—
—
83
10788
PA14 I/O (port)
RD
output (BSC)
—
—
34
43
37
PA13 I/O (port)
WRH
output (BSC)
—
—
36
4739
PA12 I/O (port)
WRL
output (BSC)
—
—
38
48
41
PA11 I/O (port)
CS1
output (BSC)
—
—
40
49
43
PA10 I/O (port)
CS0
output (BSC)
—
—
41
50
44
PA9 I/O (port)
TCLKD input (MTU)
IRQ3
(INTC)
—
42
51
45
PA8 I/O (port)
TCLKC input (MTU)
IRQ2
(INTC)
—
43
52
46
PA7 I/O (port)
TCLKB input (MTU)
CS3
output (BSC) —
44
53
47
PA6 I/O (port)
TCLKA input (MTU)
CS2
output (BSC) —
45
54
48
PA5 I/O (port)
SCK1 I/O (SCI)
DREQ1
input
(DMAC)
IRQ1
input (INTC) 46
136 49
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