M37221 Mitsubishi, M37221 Datasheet - Page 8

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

8
Fig. 3. Memory map of SFR (special function register) (1)
CA
CB
CE
DA
DB
DE
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
CC
CD
CF
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
DC
DD
DF
Address
SFR area (addresses C0
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
0 : “0” immediately after reset
1
?
Port P0 (P0)
Port P0 direction register (D0)
Port P1 (P1)
Port P1 direction register (D1)
Port P2 (P2)
Port P2 direction register (D2)
Port P3 (P3)
Port P5 direction register (D5)
Port P3 output mode control register (P3S)
DA-H register (DA-H)
DA-L register (DA-L)
PWM0 register (PWM0)
PWM1 register (PWM1)
PWM2 register (PWM2)
PWM3 register (PWM3)
PWM4 register (PWM4)
PWM output control register 1 (PW)
I C data shift register (S0)
I C address register (S0D)
I C status register (S1)
I C clock control register (S2)
DA1 conversion register (DA1)
DA2 conversion register (DA2)
Port P3 direction register (D3)
Port P5 (P5)
PWM output control register 2 (PN)
I C control register (S1D)
Serial I/O mode register (SM)
Serial I/O regsiter (SIO)
2
2
2
2
2
: Fix this bit to “0” (do not write “1”)
: “1” immediately after reset
: undefined immediately after reset
: Nothing is allocated
Register
16
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
to DF
b7
SAD6
MST
BSEL1
PW7
ACK
16
PW6
SAD5
BSEL0
SM6
TRX
ACK
BIT
)
PW5
SAD4
DA15
DA25
10 BIT
SAD
FAST
MODE
SM5
BB
Bit allocation
PW4
SAD3
CCR4
DA14
DA24
PN4
PIN
ALS
M37221EF-XXXSP,M37221EFSP
DA2S
PW3
SAD2
CCR3
DA23
SM3
DA13
PN3
ES0
AL
DA1S
PW2
SAD1
AAS
BC2
DA12
DA22
CCR2
PN2
SM2
PW1
SAD0
AD0
P31S
BC1
CCR1
DA11
DA21
SM1
with ON-SCREEN DISPLAY CONTROLLER
P30S
RBW
BC0
CCR0
PW0
LRB
SM0
DA10
DA20
b0
b7
MITSUBISHI MICROCOMPUTERS
0
0
0
0
0
0
0
0
0
0
0
State immediately after reset
0
0
0
0
0
0
0
0
0
0
0
?
0
0
?
0
0
0
0
0
?
?
0
0
0
1
0
?
?
?
?
?
0
00
00
00
00
00
00
00
?
?
?
?
?
?
?
?
?
?
?
?
?
?
16
16
16
16
16
16
16
0
?
0
0
0
0
0
?
?
?
?
?
0
0
0
?
0
0
0
?
?
?
?
?
0
?
0
0
0
0
0
?
?
?
?
?
0
0
0
0
?
0
?
?
b0