M37221 Mitsubishi, M37221 Datasheet - Page 9

• Manufacturer Part Number: M37221
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
• Manufacturer: Mitsubishi

Fig. 4. Memory map of SFR (special function register) (2)
SFR area (addresses E0
E0
E1
E2
E3
E4
E5
E6
E7
E8
E9
EC
ED
EF
FA
FB
FE
FF
EA
EB
EE
F0
F1
F2
F3
F4
F5
F6
F7
F8
F9
FC
FD
Address
0 : “0” immediately after reset
1
?
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
: Fix this bit to “0” (do not write “1”)
: Fix this bit to “1” (do not write “0”)
: “1” immediately after reset
: undefined immediately after reset
: Nothing is allocated
Horizontal register (HR)
Border selection register (MD)
CRT port control register (CRTP)
CRT clock selection register (CK)
Interrupt request register 1 (IREQ1)
Interrupt request register 2 (IREQ2)
Vertical register 1 (CV1)
Vertical register 2 (CV2)
Character size register (CS)
Color register 0 (CO0)
Color register 1 (CO1)
Color register 2 (CO2)
Color register 3 (CO3)
CRT control register (CC)
A-D control register 1 (AD1)
A-D control register 2 (AD2)
Timer 1 (TM1)
Timer 2 (TM2)
Timer 3 (TM3)
Timer 4 (TM4)
Timer 12 mode register (T12M)
Timer 34 mode register (T34M)
PWM5 register (PWM5)
Interrupt input polarity register (RE)
Test register (TEST)
CPU mode register (CPUM)
Interrupt control register 1 (ICON1)
Interrupt control register 2 (ICON2)
Register
16
to FF
b7
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
CO07
CO17
CO27
CO37
CC7
OP7
IT3R
IT3E
CV16
CV26
CO06
CO16
CO26
CO36
OP6
IICR
IICE
16
CV15
CV25
ADC5
T34M5
VSCR
VSCE
OP5
HR5
CO05
CO15
CO25
CO35
RE5 RE4 RE3
)
Bit allocation
ADM4
T12M4
T34M4
MSR
CV14
CV24
CO04
CO14
CO24
CO34
ADC4 ADC3
CRTR
CRTE
MSE
HR4
OUT1
CK0
CK0
CV13
CV23
CS21
TM4R
TM4E
OUT2
T12M3
T34M3
HR3
CO03
CO13
CO23
CO33
M37221EF-XXXSP,M37221EFSP
CS20
ADM2
CV12
CV22
ADC2
T12M2
T34M2
CM2
TM3R
TM3E
HR2
MD20
R/G/B
S1E
CC2
S1R
CO02
CO12
CO22
CO32
1T2R
HR1
CV11
CV21
ADC1
TM2R
TM2E
1T2E
CS11
CC1
ADM1
T12M1
T34M1
CK1
VSYC
CO01
CO11
CO21
CO31
1T1R
CS10
CC0
ADM0
ADC0
T12M0
T34M0
TM1R
TM1E
HR0
CV10
CV20
MD10
1T1E
HSYC
CK0
b0
with ON-SCREEN DISPLAY CONTROLLER
b7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
State immediately after reset
?
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
?
?
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
CK0
CK0
0
?
?
0
0
0
0
0
0
0
0
?
0
0
0
0
1
0
0
0
0
FF
FF
00
07
07
00
?
?
?
?
?
16
16
16
16
16
16
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
?
?
?
0
0
0
0
0
0
0
0
1
0
0
0
0
?
?
?
?
0
0
0
0
0
?
?
?
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
?
?
?
?
0
0
0
0
0
0
0
0
0
0
0
?
0
0
0
0
0
b0
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