Fujitsu FR60 Hardware Manual page 42

CHAPTER 1 OVERVIEW
Table 1.5-1 Pin Functions (12 / 13)
Pin number
176 pins 120 pins
161 69
164 45
165 46
166 47
167 48
24
I/O
Pin name circuit
type
CS3
C
PA3
RDY
IN0
D
P80
BGRNT
IN1 D
P81
BRQ
D
IN2
P82
RD
D
P83
Function
[CS3] is chip select 3 output.
This function is valid when chip select 3 output is allowed.
[PA3] is a general-purpose I/O port.
This function is valid when chip select 3 output is not
allowed.
[RDY] is external ready input.
This function is valid when external ready input is allowed.
[IN0] is an input capture input pin.
Since this input is always used when it is selected for input
capture input, output using the port must be stopped
beforehand unless this operation is the intended operation.
[P80] is a general-purpose I/O port.
This function is valid when external ready input is not
allowed.
[BGRNT] is external bus open acceptance output.
The low level is output when the external bus is open.
This function is valid when output is allowed.
[IN1] is an input capture input pin.
Since this input is always used when it is selected for input
capture input, output using the port must be stopped
beforehand unless this operation is the intended operation.
[P81] is a general-purpose I/O port.
This function is valid when external bus open acceptance is
not allowed.
[BRQ] is external bus open request input.
Input to the high level [1] if you want to open the external
bus.
This function is valid when input is allowed.
[IN2] is an input capture input pin.
Since this input is always used when it is selected for input
capture input, output using the port must be stopped
beforehand unless this operation is the intended operation.
[P82] is a general-purpose I/O port.
This function is valid when external bus open request is not
allowed.
[RD] is external bus read strobe output.
This function is valid in external bus mode.
[P80] is a general-purpose I/O port.
This function is valid in single-chip mode.