25©2017 Integrated Device Technology, Inc. October 24, 2017
5L2503 Datasheet
Byte 33: OUT3 Control Register
Byte 34: Control Register
Byte 35: Control Register
Byte 21h Name Control Function Type 0 1 PWD
Bit 7 OUT3 free run_b OUT3 free run_b R/W freerun stoppable 1
Bit 6 Reserved 0
Bit 5 Reserved 0
Bit 4 Reserved 0
Bit 3 Reserved 0
Bit 2 Reserved 0
Bit 1 Reserved 0
Bit 0 Reserved 0
Byte 22h Name Control Function Type 0 1 PWD
Bit 7 Reserved 1
Bit 6 Reserved 1
Bit 5 Reserved 1
Bit 4 Reserved 1
Bit 3 Reserved 0
Bit 2 Reserved 1
Bit 1 Reserved 0
Bit 0 Reserved 0
Byte 23h Name Control Function Type 0 1 PWD
Bit 7 OUT3 muxsel1 OUT3 muxsel1 R/W
00: DIV3 01: DIV5
10: DIV1 11: CLK_32K
1
Bit 6 OUT3 muxsel0 OUT3 muxsel0 R/W 0
Bit 5 OUT2 muxsel1 OUT2 muxsel1 R/W
00: DIV3 01: DIV5
10: DIV1 11: CLK_32K
0
Bit 4 OUT2 muxsel0 OUT2 muxsel0 R/W 0
Bit 3 OUT1 muxsel1 OUT1 muxsel1 R/W
00: DIV3 01: DIV5
10: DIV1 11: CLK_32K
1
Bit 2 OUT1 muxsel0 OUT1 muxsel0 R/W 1
Bit 1 DIV1 muxsel1 DIV1 muxsel1 R/W
00: PLL1 01: REF
1x: DIV4outseed
0
Bit 0 DIV1 muxsel0 DIV1 muxsel0 R/W 1
