Datasheet

DS2155

211 of 238

Figure 35-7. Transmit-Side ESF Timing

Note 1: TSYNC in frame mode (IOCR1.2 = 0) and double-wide frame sync is not enabled (IOCR1.3 = 0).

Note 2: TSYNC in frame mode (IOCR1.2 = 0) and double-wide frame sync is enabled (IOCR1.3 = 1).

Note 3: TSYNC in multiframe mode (IOCR1.2 = 1).

Note 4: TLINK data (FDL bits) sampled during the F-bit time of odd frame and inserted into the outgoing T1 stream if enabled through TCR1.2.

Note 5: ZBTSI mode is enabled (T1TCR2.1 = 1).

Note 6: TLINK data (Z bits) sampled during the F-bit time of frames 1, 5, 9, 13, 17, and 21 and inserted into the outgoing stream if enabled

through T1TCR1.2.

Figure 35-8. Transmit-Side Boundary Timing (with Elastic Store Disabled)

Note 1: TSYNC is in the output mode (IOCR1.1 = 1).

Note 2: TSYNC is in the input mode (IOCR1.1 = 0).

Note 3: TCHBLK is programmed to block channel 2.

Note 4: Shown is TLINK/TLCLK in the ESF framing mode.

123456789101112

TSSYNC

FRAME#

TLCLK

TSYNC

TLINK

13141516171819202122232412345

TLCLK

TLINK

LSB F MSB LSB MSB LSB MSB

CHANNEL 1 CHANNEL 2

ABC/AD/B ABC/AD/B

TCLK

TSER

TSYNC

TSIG

TCHCLK

TCHBLK

TLCLK

TLINK

D/B

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