July 2004
AS91L1006BU
PIN
PIN
PIN
TYPE
Stable state
after port/reset
PIN NAME
NUMBER NUMBER
LQFP
DESCRIPTION
LSP Reset Input.
FPBGA
LSP_RESET_n
IN
14
F4
Active low resets AS91L1006BU to
“Wait-for-Selection” state and pulses
all LSP TRST output pins to low.
This resets all devices with TRST
function; typically this signal would be
connected to a power-on-reset
function.
AS91L1006BU_
SELECTED
OUT
OUT
25
24
K1
J1
AS91L1006BU_Selected Output.
Logic '1'
Logic '1'
Active low when AS91L1006BU is
selected; typically used to control off
board buffering.
LSP_ENABLE
LSP Enabled Output.
Active low when AS91L1006BU is
selected; typically used to set
IEEE1149.1 compliance enable pins
on devices.
USER_STATUS
_BYTE[7:0]
IN
84, 85, 92, C7,C6,C5,C AS91L1006BU Status_Byte Inputs.
93, 94, 96, 4,B4,A4,B3,
97, 98
A3(MSB- Used to provide status information of
(MSB-LSB)
LSB)
the PCB under test back to the test
master via the IEEE1149.1 bus. Eight
signals levels can be monitored and
then reported via the IEEE1149.1 bus
in a non intrusive manner.
SELF_TEST
OUT
IN
27
9
K2
E4
Provides a low going output pulse
under command from the
IEEE1149.1 bus, which can be used
to start self-test functions on a PCB.
Logic '1'
PASS_THRU_
ENABLE
PASS_THRU Enable Input.
Active high disables Pass-Through
mode.
Active low enables Pass-Through
mode.
PASS_THRU_
SEL12:0]
IN
13,12,10
(MSB-LSB) (MSB-LSB)
E2,E1,E3 PASS_THRU Select Inputs.
Used to select active routing of Pass-
Through ports enabled by active low
on PASS_THRU_ENABLE pin.
000 = LSP1
001 = LSP2
010 = LSP3
011 = LSP4
100 = LSP5
101 = LSP6
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2003, 2004 © Copyright Alliance Semiconductor Corporation. All Rights reserved.
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