Rainbow Electronics DS3170 - Manual (Page 47)

DS3170 DS3/E3 Single-Chip Transceiver
47 of 233
Figure 7-29. 8-Bit Mode Write
0x34 0x12
0x2B0 0x2B0
D[7:0]
A[10:1]
A[0]/BSWAP
Z Z Z Z
Note: Address 0x2B0 = 0x34
0x2B1 = 012
RD
WR
CS
RDY
Figure 7-30. 8-Bit Mode Read
D[7:0]
A[10:1]
A[0]/BSWAP
0x2B0
0x34
Z Z
0x2B0
0x12
Z Z
Note: Address 0x2B0 = 0x34
0x2B1 = 012
RD
WR
CS
RDY
Figure 7-31 and Figure 7-32 are examples of databuses without and with byte swapping enabled, respectively.
When the A[0]/BSWAP pin is set to 0, byte swapping is disabled, and when one, byte swapping is enabled. This
pin should be static and not change while operating. Note: Address bit A[0] is not used in 16-bit mode. See also
Section
9.1.3 .