HFC-SUSB Cologne Chip AG, HFC-SUSB Datasheet - Page 15

• Manufacturer Part Number: HFC-SUSB
• Description: Isdn S/t HDLC Basic Rate Controller
• Manufacturer: Cologne Chip AG

863 C EC2
2.2.5 Auxiliary port and D-interface signals
u)
e)
2.2.6 Miscellaneous pins
u)
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Pin No.
10
11
47
46
45
36
44
48
internal pull up
external pull up required
internal pull up
4
5
6
7
8
9
2
1
PORT_D0
PORT_D1
PORT_D2
PORT_D3
PORT_D4
PORT_D5
PORT_D6
PORT_D7
A0
/WR
/RD
EE_SCL
EE_SDA
/WAIT
MODE
/INT
/RES
Pin Name
Output
Input
I/O
O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
O
I
I
I
e)
u)
u)
e)
u)
Function
Data bus (bit 0)
Data bus (bit 1)
Data bus (bit 2)
Data bus (bit 3)
Data bus (bit 4)
Data bus (bit 5)
Data bus (bit 6)
Data bus (bit 7)
Address bit 0 from external processor (selects between register
selection (A0 = '1') and data read/write (A0 = '0') )
Write signal from external processor
Read signal from external processor
Clock of external EEPROM (only during reset)
This pin must be connected to GND if no EEPROM is
connected to the HFC-S USB.
Serial data of external EEPROM (only during reset)
Wait signal for external processor (low active)
Mode selection (only during reset)
Interrupt request for external processor (low active)
Reset (low active)
Cologne
Chip
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