HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 59

• Manufacturer Part Number: HD64570
• Description: Serial Communications Adaptor
• Manufacturer: HITACHI [Hitachi Semiconductor]

2.2
The function of each signal line is described below. Note that permanent or temporary input lines
must never be left unconnected.
Table 2.1
Symbol
V
V
Note: To minimize potential differences in the chip, use the shortest possible lead length to the
Table 2.2
Symbol
CLK
Table 2.3
Symbol
RESET
CC
SS
V
CC
Pin Functions
pins and V
CP-84
21, 22, 44, 65,
83
1, 7, 19, 35,
46, 54, 63
CP-84
84
CP-84
2
Power Supply
Clock
Reset Line
Pin Number
Pin Number
Pin Number
SS
pins.
FP-88
10, 33, 34
57, 79
12, 18, 31,
48, 59, 68,
77
FP-88
11
FP-88
13
Input/
Output
Input
Input
Input/
Output
Input
Input/
Output
Input
Description
+5 V power supply: All VCC pins must be
connected to the system power supply (+5 V).
Ground: All VSS pins must be connected to the
system ground (0 V).
Description
System clock input: The input is reshaped on
chip and used as the
Description
Reset: When this line is driven active low for 6
or more clock cycles, the SCA enters reset
mode. All functional modules are reset.
Rev. 0, 07/98, page 43 of 453
clock.