EM77950
BB Controller
The table is a summary of all registers except general purpose registers.
Addr Name
Reset Type
Full Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Indirect Addressing Register contents
Bit Name
IAC07
IAC06
IAC05 IAC04 IAC03 IAC02 IAC01 IAC00
Read / Write (R/W)
Power-on
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
0x00 IAC0
/RESET and WDT
Wake-up from Int
Full Name
0
0
0
0
0
0
0
0
P
P
P
P
P
P
P
P
Most Significant Byte of Programming Counter
Bit Name
PC7
R
PC6
R
PC5
R
PC4
R
PC3
R
PC2
R
PC1
R
PC0
R
Read / Write (R/W)
Power-on
0x01 HPC
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from Int Jump to corresponding interrupt vector or continue to execute next instruction
Full Name
Least Significant Byte of Programming Counter
Bit Name
PCF
R/W
0
PCE
R/W
0
PCD
R/W
0
PCC
R/W
0
PCB
R/W
0
PCA
R/W
0
PC9
R/W
0
PC8
R/W
0
Read / Write (R/W)
Power-on
0x02 LPC
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-up from Int Jump to corresponding interrupt vector or continue to execute next instruction
Full Name
Status Register
Bit Name
-
-
-
-
-
-
-
-
-
-
RST
R/W
0
T
R/W
1
P
R/W
1
Z
R/W
U
DC
R/W
U
C
R/W
U
Read / Write (R/W)
Power-on
0x03
SR
/RESET and WDT
Wake-up from Int
Full Name
P
T
T
P
P
P
P
T
T
P
P
P
RAM Bank Selector 0
Bit Name
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
RBS02 RBS01 RBS00
Read / Write (R/W)
Power-on
R
0
R
0
R
0
RAMBS
0
0x04
/RESET and WDT
Wake-up from Int
Full Name
0
0
0
P
P
P
ROM Page Selector
Bit Name
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
RPS0
Read / Write (R/W)
Power-on
R/W
0
0x05 ROMPS
/RESET and WDT
Wake-up from Int
0
P
12 •
Product Specification (V1.0) 10.09.2007
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
