IDT5P49EE515
VERSACLOCK
®
LOW POWER CLOCK GENERATOR EEPROM CLOCK GENERATOR
IDT®
VERSACLOCK
®
LOW POWER CLOCK GENERATOR 16
IDT5P49EE515 REV H 101711
Programming Registers Table
Addr
Default
Register
Hex
Value
Bit #
Description
7654321 0
0x00 04 Reserved
0x01 00 Reserved INV[#] - Invert output#
SLEW#[0:1] - output# slew setting
0 0 - 5.1V/ns
0 1 - 4.4V/ns
1 0 - 2.8V/ns
1 1 - 1.8V/ns
PS#[2:1] -Power Select
00 - Reserved
01 - CLK# connects to VDDO1
10 - CLK# connects to VDDO2
11 - Reserved
0x02 00 Reserved
0x03 00 Reserved
0x04 00 INV[1] SLEW1[0:1] Reserved PS1[2:1] Reserved
0x05 00 INV[2] SLEW2[0:1] Reserved PS2[2:1] Reserved
0x06 00 INV[3] SLEW3[0:1] Reserved PS3[2:1] Reserved
0x07 00 Reserved
0x08 00 Reserved
0x09 00 Reserved
0x0A 00 Reserved
0x0B 00 Reserved
0x0C 00 Reserved
0x0D 00 Reserved
0x0E 00 REFA[7:0] Configuration0
REFA[7:0] - Reference Divide PLLA
0x0F 00 FBA[10:3) FBA[10:0] - Feedback Divide PLLA
0x10 00 Reserved FBA[2:0)
0x11 00 Reserved XDIVA RZA[1:0] IPA[2:0] Reserved RZA[1:0] - Zero Resistor PLLA
00 - 5kOhm
01 - 10kOhm
10 - 30kOhm
11 - 80kOhm
IPA[2:0] - charge Pump Current PLLA
100 - 6.3uA
101 -11.9 uA
110 - 17.7 uA
111 - 22.7uA
0x12 00 REFB[7:0] REFB[7:0] - Reference Divide PLLB
0x13 00 FBB[10:3] FBB[10:0] - Feedback Divide PLLB
0x14 00 Reserved PLLB Spread Parameters MOD[12:0]
NC[10:0]
NSS[12:0]
0x15 00 Reserved
0x16 00 NC[10:3]
0x17 00 Reserved
0x18 00 Reserved
0x19 40 IPB[5:0] RZB[1:0] RZB[1:0] - Zero Resistor PLLB
00 - 5kOhm
01 - 10kOhm
10 - 30kOhm
11 - 80kOhm
IPB[2:0] - charge Pump Current PLLB
000 - 0.37uA, 100 - 6.3uA
001 - 1.1uA, 101 - 11.9uA
010 - 1.8 uA, 110 - 17.7uA
011 - 3.4uA, 111 - 22.7uA
IPB[5:3] - charge Pump Current PLLB
000 - 0.37uA, 100 - 6.3uA
001 - 1.1uA, 101 - 11.9uA
010 - 1.8 uA, 110 - 17.7uA
011 - 3.4uA, 111 - 22.7uA
IPB total value = IPB[5:3] = IPB[2:0]
0x1A 00 Reserved SSENB_B
0x1B 00 Reserved
0x1C 00 Reserved
0x1D 00 Reserved
0x1E 00 Reserved
0x1F 00 Reserved
0x20 00 REFC[7:0] REFC[7:0] - Reference Divide PLLC
0x21 00 FBC[10:3] FBC[10:0] - Feedback Divide PLLC
0x22 00 Reserved FBC[2:0]