Sundance SMT942 - Manual (Page 20)

User Manual SMT942 Page 20 of 55 Last Edited: 23/08/2011 17:25:00
Default ‘0000’ ‘0011’
Reset Register 8 0x18
Setting Bit 8 Description HOLD_ON_LOR
0 0 Normal mode of operation
1 1 Charge pump in tri-state mode
Setting Bit 15:10 Description Coarse Phase Adjustment[5:0] External Clock
0 0
1 1
CLOCK Register 9 0x19.
Clock Register 9 0x19
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
1 Output0 (External Clock) Mode PECL4HISWING Output
Divider
Enable
Default ‘100000’ ‘0’ ‘0’
0 Output Divider Ratio External Clock Coarse Phase
Adjustment[6]
Default ‘0000000’ ‘0’
Reset Register 9 0x19
Setting Bit 0 Description - Coarse Phase Adjustment[6] External Clock
0 0
1 1
Setting Bit 7:1 Description Output Divider Ratio External Clock
0 0
1 1
Setting Bit 8 Description Output Divider Enable External Clock
0 0 Divider disabled.
1 1 Divider enabled.
Setting Bit 9 Description PECL4HISWING PECL output voltage swing (External Clock)
0 0 Normal Operation.
1 1 High PECL output voltage.
Setting Bit 15:10 Description Output4 (External Clock) mode
0 0 LVPECL only: ‘100000’.
CLOCK Register A 0x1A.
Clock Register A 0x1A
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0