Renesas 7700 FAMILY User Manual page 439

FLASH MEMORY VERSION
19.2 Serial input/output mode
Table 19.2.1 Pin description in serial I/O mode
Pin
Power supply
Vcc, Vss
V input
CNVss
PP
External data bus width
BYTE
select input
______
Reset input
RESET
Clock input
X
IN
Clock output
X
OUT
_
Enable output
E
Analog supply input
AVcc
AVss
V
Reference voltage input
REF
P0 –P0
Input port P0
0 7
P1 –P1
Input port P1
0 7
P2 –P2
Input port P2
0 7
P3 –P3
Input port P3
0 3
P4
Input port P4
0
P4
1
P4
2
P4
3
P4
BUSY output
4
P4
SDA I/O
5
P4
SCLK input
6
P4
Input port P4
7
P5
Input port P5
0
P5
Control signal input
1
P5 to P5
Input port P5
2 7
P6 to P6
Input port P6
0 7
P7 to P7
Input port P7
0 7
P8 to P8
Input port P8
0 7
19–22
Name
Input/Output
Input
Input
Input
Input
Output
Output
Input
Input
Input
Input
Input
Input
Output
I/O
Input
Input
Input
Input
Input
7751 Group User's Manual
Supply 5 V ±10 % to Vcc pin and 0 V to Vss pin.
Supply 12 V ±5 %.
Connect to Vss pin or Vcc pin.
Connect to Vss pin.
Connect a ceramic resonator or quartz-crystal oscillator
between X and X
IN OUT
clock, the clock source must be input to X
X pin must be left open.
OUT
"H" level is output.
Connect to Vcc pin.
Connect to Vss pin.
Input level between Vss and Vcc or open.
Input "H" or "L" level, or open.
Input "H" or "L" level, or open.
Clock φ
is output.
1
Input "H" or "L" level, or open.
This pin is BUSY signal output.
This pin is serial data I/O.
This pin is serial clock input.
Input "H" or "L" level, or open.
Input "H" or "L" level, or open.
___
This pin is OE signal input.
Input "H" or "L" level, or open.
Input "H" or "L" level, or open.
Functions
pins. When using an external
pin and
IN