lpc47s457-ns Standard Microsystems Corp., lpc47s457-ns Datasheet - Page 259

• Manufacturer Part Number: lpc47s457-ns
• Description: Advanced I/o With X-bus Interface
• Manufacturer: Standard Microsystems Corp.

SMSC LPC47S45x
6.
7.
INITIAL CONFIG
INITIAL CONFIG
END CONFIG
END CONFIG
Each input should now be brought low, starting at pin one and continuing in ascending order. Continue until
all inputs are low. The output on TXD1 (PIN 88) should now be low. Refer to Truth Table 2.
To exit test mode, tie LAD0 (pin 23) or LFRAME# (pin 27) high, and toggle PCI_RESET# from a low to a
high state.
STEP N
STEP N
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
…
PIN 6
PIN
128
…
…
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
TRUTH TABLE 1 - Toggling inputs in descending order
TRUTH TABLE 2 - Toggling inputs in ascending order
PIN 7
PIN
127
…
…
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
DATASHEET
PIN 8
PIN
126
…
…
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
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PIN 9
PIN
123
…
…
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
PIN 10
PIN
122
…
…
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
PIN ...
PIN ...
…
…
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
PIN 6
PIN
128
…
…
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
PIN TXD1
PIN TXD1
OUTPUT
OUTPUT
(PIN 88)
(PIN 88)
…
…
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
Rev. 08-10-09