stc3800 Connor-Winfield VCXOs, stc3800 Datasheet - Page 25

• Manufacturer Part Number: stc3800
• Description: Integrated - Stratum 3e Timing Source
• Manufacturer: Connor-Winfield VCXOs

Register Descriptions and Operation continued
Chksum, 0x33 (R)
Checksum verification register for configuration data. See Application Notes, Configuration Data section. Initialized to zero on
power-up/reset, indicates 0 = fail or 1 = pass upon configuration data pump completion.
EE_Mode, 0x36 (R/W)
EEPROM write enable register. See Application Notes, General, Reading and Writing EEPROM Data section.
EE_Cmd, 0x37 (R, W)
EEPROM read/write command register. See Application Notes, General, Reading and Writing EEPROM Data section.
EE_Page_Num, 0x38 (R, W)
EEPROM read/write page number register. EEPROM consists of 160 pages. See Application Notes, General, Reading and
Writing EEPROM Data section.
EE_FIFO_Port, 0x39 (R, W)
EEPROM read/write FIFO port register. EEPROM data is written to/read from here. See Application Notes, General, Reading
and Writing EEPROM Data section.
Reserved
Reserved
Bit 7
EEPROM read/write
ready bit:
0 = not ready
1 = ready
EEPROM read/write page number, 0x00 to 0x9f (0 - 159)
EEPROM read/write FIFO data
Bit 7 ~ Bit 1
Bit 7 ~ Bit 1
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved
Preliminary Data Sheet #: TM061
Bit 6 ~ Bit 2
Reserved
Bit 7 ~ Bit 0
Bit 7 ~ Bit 0
Page 25 of 48
Bit 0
Configuration Data checksum
pass/fail indicator:
0 = fail, 1 = pass
Bit 0
EEPROM write enable:
0 = disabled, 1 = enabled
Bit 1 ~ 0
EEPROM read/write command bits:
00: Reset FIFO
01 = Write command
10 = Read command
Specifications subject to change without notice
Rev: P06 Date: 11/22/04