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PRELIMINARY
S3C6400X RISC MICROPROCESSOR
MULTI-FORMAT VIDEO CODEC
21-60
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Detailed Description of BIT Processor Registers
CodeRun (0x000)
Bit
Name
Type
Function
Reset Value
0
CodeRun
W
0 – BIT Processor stop execution
1 – BIT Processor start execution
0
CodeDownLoad (0x004)
Bit
Name
Type
Function
Reset Value
15:0
CodeData
W
16 bit BIT code download data
0
28:16
CodeAddr
W
13 bit BIT code download address
BIT code word address (16 bit address)
* Current design has 4 K code word space (8 KB).
Therefore CodeAddr[12:0] must be less than 4095
0
HostIntReq (0x008)
Bit
Name
Type
Function
Reset Value
0
IntReq
W
Interrupt request to BIT processor.
Host can write ‘1’ to this register to request interrupt
to BIT
* Current firmware version does not use Interrupt
from Host to BIT. Therefore this register is not used
0
BitIntClear (0x00C)
Bit
Name
Type
Function
Reset Value
0
IntClear
W
Writing ‘1’ to this register clear BIT interrupt to host
0
BitIntSts (0x010)
Bit
Name
Type
Function
Reset Value
0
IntSts
R
1 means that BIT interrupts to host is asserted.
This bit is cleared when Host writes IntClear Register
‘1’
0