Samsung S5PC100, User Manual

Page: 52 / 1863

S5PC100 USER’S MANUAL (REV1.0) IROM CODE
2.6-7
4 REGISTER DESCRIPTION
Register Address R/W Description Reset Value
PRO_ID 0xE000_0000 R Product information (ID, package, revision) 0x43100???
OMR 0xE000_0004 R Booting information (Booting modes) 0x0003????
4.1 PRODUCT ID REGISTER (PRO_ID, R, ADDRESS = 0XE000_0000)
Field Bit Description Reset Value
Product ID [31:12] Product ID
The product ID allocated to S5PC100 is “0x43100”
0x43100
Reserved [11:10] Should be zero 0x0
Package mode [9:8] Package mode
2’0X : discrete
2’1X : POP
Device
dependent
Main revision
number [7:4] Main revision number* 0xF**
Sub revision
number [3:0] Sub revision number* 0xF**
NOTE: *: The sub revision number represents the revision number which does not need to change the SW, while the main
revision number represents the revision number need to change the SW..
NOTE: **: PRO_ID register [7:0] depends on the e-fuse ROM value. Although the reset value of PRO_ID register [7:0] is
0xFF, as power on sequence is progressing, the e-fuse ROM values are loaded to the registers. Hence, SW cannot
read register reset value itself, but it can only read the loaded current e-fuse ROM values. An the e-fuse ROM has
main & sub revision numbers.
4.2 OPERATING MODE REGISTER (OMR, R, ADDRESS = 0XE000_0004)
Field Bit Description Reset Value
Reserved [31:18] Read as zero 0x0
Reserved
[17] Read as one 1
Reserved
[16] Read as one 1
Reserved [15:14] Read as zero 0x0
NFMOD [13:8] The value of the XNFMOD[5:0] pad Pin value
Reserved [7:5] Read as zero 0x0
OM [4:0] The value of the XOM[4:0] pad Pin value