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The MAC scan chain for scan path testing can be input through MSCANI and output
through MSCANO. The scan chain, which is clocked on the rising edge of BYTCLK,
consists of the following signals (the reading order is from left to right):
MSCANI
TXDAT0
TXDAT5
TXDAT6
RPATH1
RPATH2
RPATH7
RCCTL0
RABORT
TXRDY
TXCTL0
TXCTL1
TPATH4
TPATH5
(All PKTGEN are Internal Signals)
PKTGEN12
PKTGEN13
RCDAT2
RCDAT3
RCDAT8
RCDAT9
NOTE: MSCANI and MSCANO are not latched pins but represent the input and output of the scan chain,
respectively. PKTGEN15–PKTGEN0 are internal latches in the scan chain.
MOTOROLA
TXDAT1
TXDAT2
TXDAT7
TXDAT8
RPATH3
RPATH4
RCCTL1
RCCTL2
TABORT
PARITY_ERR (Internal Signal)
TPATH0
TPATH1
TPATH6
TPATH7
PKTGEN9
PKTGEN14
PKTGEN15
RCDAT4
RCDAT5
MSCANO
—
MC68838 USER'S MANUAL
TXDAT3
TXDAT4
TXDAT9
RPATH0
RPATH5
RPATH6
RCCTL3
RCCTL4
—
TPATH2
TPATH3
PKTGEN8
—
PKTGEN10
PKTGEN11
RCDAT0
RCDAT1
RCDAT6
RCDAT7
—
—
10-3
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