Owner's manual

DS21455/DS21458 Quad T1/E1/J1 Transceivers
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5.8 Pin Descriptions
Table 5-1. DS21455 PIN DESCRIPTION
PIN NAME TYPE FUNCTION
U3 A0 I Address Bus Bit 0 (Lsb)
L17 A1 I Address Bus Bit 1
V2 A2 I Address Bus Bit 2
T4 A3 I Address Bus Bit 3
V8 A4 I Address Bus Bit 4
H4 A5 I Address Bus Bit 5
U8 A6 I Address Bus Bit 6
P4 A7/ALE (AS) I Address Bus Bit 7 (Msb)/Address Latch Enable
M1 BPCLK1 O Backplane Clock, Transceiver 1
H17 BPCLK2 O Backplane Clock, Transceiver 2
F4 BPCLK3 O Backplane Clock, Transceiver 3
V13 BPCLK4 O Backplane Clock, Transceiver 4
P2 BTS I Bus Type Select (0 = Intel/1 = Motorola)
P3
CS1
I Chip Select for Transceiver 1
A14
CS2
I Chip Select for Transceiver 2
B5
CS3
I Chip Select for Transceiver 3
K17
CS4
I Chip Select for Transceiver 4
U11 D0/AD0 I/O Data Bus Bit 0/Address/Data Bus Bit 0 (Lsb)
J19 D1/AD1 I/O Data Bus Bit 1/Address/Data Bus Bit 1
W15 D2/AD2 I/O Data Bus Bit 2/Address/Data Bus Bit 2
U7 D3/AD3 I/O Data Bus Bit 3/Address/Data Bus Bit 3
U9 D4/AD4 I/O Data Bus Bit 4/Address/Data Bus Bit 4
U5 D5/AD5 I/O Data Bus Bit 5/Address/Data Bus Bit 5
V4 D6/AD6 I/O Data Bus Bit 6/Address/Data Bus Bit 6
U4 D7/AD7 I/O Data Bus Bit 7/Address/Data Bus Bit 7 (Msb)
J3 DVDD — Digital Positive Supply
N4 DVDD — Digital Positive Supply
U2 DVDD — Digital Positive Supply
V5 DVDD — Digital Positive Supply
B12 DVDD — Digital Positive Supply
C12 DVDD — Digital Positive Supply
C16 DVDD — Digital Positive Supply
D18 DVDD — Digital Positive Supply
A9 DVDD — Digital Positive Supply
B3 DVDD — Digital Positive Supply
B6 DVDD — Digital Positive Supply
C4 DVDD — Digital Positive Supply
G20 DVDD — Digital Positive Supply
M17 DVDD — Digital Positive Supply
M20 DVDD — Digital Positive Supply
P18 DVDD — Digital Positive Supply
H3 DVSS — Digital Signal Ground
U6 DVSS — Digital Signal Ground
W8 DVSS — Digital Signal Ground
A17 DVSS — Digital Signal Ground
A20 DVSS — Digital Signal Ground
B11 DVSS — Digital Signal Ground
A5 DVSS — Digital Signal Ground