Lucent Technologies Inc.
9
Preliminary Data Sheet
August 1998
H.100/H.110 Interface and Time-Slot Interchanger
Ambassador T8100
1 Product Overview
(continued)
1.3 Pin Information
(continued)
Table 4. Pin Descriptions: Microprocessor Interface Pins
Table 5. Pin Descriptions: JTAG Pins
Table 6. Pin Descriptions: Power Pins
Symbol
RESET
Pin
24
Ball Type
J1
Name/Description
I
Master Reset (Active-Low).
See Section 3.1 Resets. 50 k
internal pull-
up.
Microprocessor Interface, Address Lines.
Internal 20 k
pull-down.
A[1:0]
31—30 L4,
L2
H1,
H2,
G1,
H3,
G2,
F1,
G4,
G3
L1
K3
K2
I
D[7:0]
22—15
I/O
Microprocessor Interface, Data Lines.
8 mA drive, 50 k
internal pull-up.
ALE
CS
29
28
27
I
I
I
Address Latch Enable.
Internal 20 k
pull-down.
Chip Select (Active-Low).
50 k
internal pull-up.
Read Strobe (Intel Mode [Active-Low]), Data Strobe (Motorola [Active-
Low]).
50 k
internal pull-up.
Write Strobe (Intel[Active-Low]), Read/Write Select (Motorola [Active-
Low]).
50 k
internal pull-up.
Data Ready (Intel), Data Transfer (Motorola [Active-Low]).
8 mA, open drain (user should add pull-up to this line).
Clock Error.
Logical OR of CLKERR register flags (only). 8 mA drive,
3-state
System Error.
Logical OR of all CLKERR and SYSERR register flags.
8 mA drive, 3-state.
RD (DS)
WR (R/W)
26
K1
I
RDY (DTACK)
25
J3
O
CLKERR
13
E1
O
SYSERR
12
F3
O
Symbol
TCLK
TMS
TDI
TDO
Pin
9
8
7
6
5
Ball
E3
F4
D2
C1
E4
Type
I
I
I
O
I
Name/Description
JTAG Clock Input.
JTAG Mode Select.
50 k
internal pull-up.
JTAG Data Input.
50 k
internal pull-up.
JTAG Data Output.
8 mA drive, 3-state.
JTAG Reset (Active-Low).
50 k
internal pull-up.
TRST
Symbol
V
SS
Pin
Ball
Type
—
Name/Description
11, 23, 37, 49, 57, 72,
86, 100, 103, 105, 109,
111, 113, 117, 119, 121,
127, 138, 143, 153, 163,
173, 184, 204
B2, B16, C3, C15, D4,
D9, D14, H8, H9, H10,
J4, J8, J9, J10, J14,
K8, K9, K10, L15, N14,
P4, P9, P14, P16, R3,
R15, T2, T15, T16,
U15, U17
A16, D8, D10, F2, H4,
H14, K4, K14, L16, P8,
P10, T9
Chip Ground.
V
DD
14, 32, 46, 63, 79, 93,
107, 124, 132, 148, 158,
168, 178, 193
—
3.3 V Supply Voltage
.