S3C828B Datasheet, PDF (73/369 Pages) Samsung semiconductor – 8-BIT CMOS MICROCONTROLLERS

S3C828B/F828B/C8289/F8289/C8285/F8285
CONTROL REGISTER
4
CONTROL REGISTERS
OVERVIEW
In this chapter, detailed descriptions of the S3C828B/C8289/C8285 control registers are presented in an easy-to-
read format. You can use this chapter as a quick-reference source when writing application programs. Figure 4-1
illustrates the important features of the standard register description format.
Control register descriptions are arranged in alphabetical order according to register mnemonic. More detailed
information about control registers is presented in the context of the specific peripheral hardware descriptions in
Part II of this manual.
Data and counter registers are not described in detail in this reference chapter. More information about all of the
registers used by a specific peripheral is presented in the corresponding peripheral descriptions in Part II of this
manual.
The locations and read/write characteristics of all mapped registers in the S3C828B/C8289/C8285 register file are
listed in Table 4-1. The hardware reset value for each mapped register is described in Chapter 8, "RESET and
Power-Down."
Table 4-1. Set 1 Registers
Register Name
Basic Timer Control Register
System Clock Control Register
System Flags Register
Register Pointer 0
Register Pointer 1
Stack Pointer (High Byte)
Stack Pointer (Low Byte)
Instruction Pointer (High Byte)
Instruction Pointer (Low Byte)
Interrupt Request Register
Interrupt Mask Register
System Mode Register
Register Page Pointer
Mnemonic
Decimal
Hex
R/W
BTCON
211
D3H
R/W
CLKCON
212
D4H
R/W
FLAGS
213
D5H
R/W
RP0
214
D6H
R/W
RP1
215
D7H
R/W
SPH
216
D8H
R/W
SPL
217
D9H
R/W
IPH
218
DAH
R/W
IPL
219
DBH
R/W
IRQ
220
DCH
R
IMR
221
DDH
R/W
SYM
222
DEH
R/W
PP
223
DFH
R/W
4-1