Fujitsu MB91F109 FR30 Hardware Manual page 39

Table 1.5-1 Pin Functions (1/5)
NO. Pin name
33 A16/P60
34 A17/P61
35 A18/P62
36 A19/P63
37 A20/P64
38 A21/P65
39 A22/P66
40 A23/P67
Table 1.5-2 Pin Functions (2/5)
NO. Pin name
41 A24/P70/EOP0
42 RDY/P80
43 BGRNTX/P81
44 BRQ/P82
45 RDX/P83
46 WR0X/P84
I/O circuit
format
F Bits 16 to 23 of external address bus.
When these pins are not used for the address bus,
they can be used as general-purpose I/O ports (P60
to P67).
I/O circuit
format
F Bit 24 of external address bus.
This pin is enabled when DMAC EOP output is
enabled.
[EOP0] DMAC EOP output (ch0)
[P70] When this pin is not used as A24 and EOP0,
the pin can be used as a general-purpose I/O port.
E External Ready input. 0 is input when the bus cycle
being executed is not completed. When the pin is
not used for this purpose, it can be used as a
general-purpose I/O port.
F Output of external bus release acceptance. L is
output when the external bus has been released.
When the pin is not used for this purpose, it can be
used as a general-purpose I/O port.
E Input of external bus release request. 1 is input to
request that the external bus be released. When
the pin is not used for this purpose, it can be used
as a general-purpose I/O port.
F External bus read strobe.
When the pin is not used for this purpose, it can be
used as a general-purpose I/O port.
F External bus write strobe. Individual control signals
and data bus byte positions have the following
relationships:
1.5 Pin Functions
Function
Function
15