Rockwell SoniCrafter BT8960 Manual

A SERVICE OF

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2.0 Functional Description

2.4 Channel Unit Interface

Bt8960

Single-Chip 2B1Q Transceiver

N8960DSB

Parallel slave mode uses RBCLK and TBCLK inputs to synchronize data

transfer. RBCLK and TBCLK must be frequency-locked to QCLK, though the

use of two internal FIFOs allow an arbitrary phase relationship to QCLK. TQ[1]

and TQ[0] are sampled on the active edge of TBCLK, as programmed through the

MCI. RQ[1] and RQ[0] are output on the active edge of RBCLK, also as pro-

grammed through the MCI. The clock relationships for the case where TBCLK is

programmed to be falling-edge active and RBCLK is rising-edge active are illus-

trated in Figure 2-8.

Figure 2-8. Parallel Slave Mode

TBCLK

Sign

0

Sign

2

Sign

1

Magnitude

0

Magnitude

1

Magnitude

2

TQ[1]

TQ[0]

RBCLK

Sign

0

Sign

2

Sign

1

Magnitude

0

Magnitude

1

Magnitude

2

RQ[1]

RQ[0]