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