HT9580 memory attribute table (I/O and data space)
Address
Register
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
State on
POR
0000H
Config.
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0001 0000
0001H
WDT-TMR
X
X
R/W
R/W
R/W
R/W
R/W
R/W
0000 0111
0002H
CLR WDT
W
W
W
W
W
W
W
W
uuuu uuuu
0003H
BZ-L
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0004H
BZ-H
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0005H
INT ctrl
0
0
0
R/W
R/W
R/W
R/W
R/W
0000 1111
0006H
INT flag
0
R/W
R/W
R
R/W
R/W
R/W
R/W
0000 0000
0007H
TMRC
R/W
X
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0008H
TMR1L
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
uuuu uuuu
0009H
TMR1H
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
uuuu uuuu
000AH
TMR0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
uuuu uuuu
000BH
PA data
X
X
R/W
R/W
R/W
R/W
R/W
R/W
uuuu uuuu
000CH
PB data
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
uuuu uuuu
000DH
PC data
X
X
X
X
X
X
R/W
R/W
uuuu uuuu
000EH
PAC
X
X
R/W
R/W
R/W
R/W
R/W
R/W
uu11 1111
000FH
PBC
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1111 1111
0010H
PCC
X
X
X
X
X
X
R/W
R/W
uuuu uu11
0011H
PA WUE
X
X
R/W
R/W
R/W
R/W
R/W
R/W
uu00 0000
0012H
PA IM
X
X
R/W
R/W
R/W
R/W
R/W
R/W
uu00 0000
0013H
PB IM
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0014H
PC IM
X
X
X
X
X
X
R/W
R/W
uuuu uu00
0015H
MROM-BP
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0016H
SRAM-BP
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0017H
LCD_CTRL
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 1101
0018H
LCD_CMD
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
uuuu uuuu
0019H
Decoder
Control/
flag
X
R/W
R
X
R
X
R/W
R/W
uu0u uu01
001AH~
002EH
Decoder
Configuration
Memory
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
uuuu uuuu
002FH
D/A-L
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0030H
D/A-H
X
X
X
X
X
R/W
R
R
uuuu u1uu
0031H
Buffer
Status
R
X
R
R
R
R
R
R
0uuu uuuu
0032H
SPI-CONFIG
R/W
R/W
R/W
R
R
R/W
R/W
R/W
0111 1000
0033H
SPI-SPEED
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0034H
SPI-OUT3
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0035H
SPI-OUT2
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0036H
SPI-OUT1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0037H
SPI-OUT0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000 0000
0038H
SPI-IN3
R
R
R
R
R
R
R
R
0000 0000
0039H
SPI-IN2
R
R
R
R
R
R
R
R
0000 0000
003AH
SPI-IN1
R
R
R
R
R
R
R
R
0000 0000
003BH
SPI-IN0
R
R
R
R
R
R
R
R
0000 0000
Note:
R Read Only
W Write Only
R/W Read or Write
X N/A
HT9580
9
April 28, 2000y
Preliminary