M37221EF View Datasheet(PDF) - Mitsumi
Part Name
Description
Manufacturer
M37221EF Datasheet PDF : 63 Pages
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MITSUBISHI MICROCOMPUTERS
M37221EF-XXXSP,M37221EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
sSFR area (addresses C016 to DF16)
: Nothing is allocated
: Fix this bit to “0” (do not write “1”)
0 : “0” immediately after reset
1 : “1” immediately after reset
? : undefined immediately after reset
Address
Register
C016
C116
C216
C316
Port P0 (P0)
Port P0 direction register (D0)
Port P1 (P1)
Port P1 direction register (D1)
C416 Port P2 (P2)
C516 Port P2 direction register (D2)
C616 Port P3 (P3)
C716 Port P3 direction register (D3)
C816
C916
CA16 Port P5 (P5)
CB16 Port P5 direction register (D5)
CC16
CD16 Port P3 output mode control register (P3S)
CE16 DA-H register (DA-H)
CF16 DA-L register (DA-L)
D016 PWM0 register (PWM0)
D116 PWM1 register (PWM1)
D216 PWM2 register (PWM2)
D316 PWM3 register (PWM3)
D416 PWM4 register (PWM4)
D516 PWM output control register 1 (PW)
D616 PWM output control register 2 (PN)
D716 I2 C data shift register (S0)
D816 I2 C address register (S0D)
D916 I2 C status register (S1)
DA16 I2 C control register (S1D)
DB16 I2 C clock control register (S2)
DC16 Serial I/O mode register (SM)
DD16 Serial I/O regsiter (SIO)
DE16 DA1 conversion register (DA1)
DF16 DA2 conversion register (DA2)
Bit allocation
State immediately after reset
b7
b0 b7
b0
?
0016
?
0016
?
0016
0 0 0 ??? ? ?
0 0 00 00 0 0
?
?
0 0 ? ?? ? ??
0 0 00 00 0 0
?
DA2S DA1S P31S P30S 0 0 0 0 0 0 0 0
?
0 0 ? ??? ? ?
?
?
?
?
?
PW7 PW6 PW5 PW4 PW3 PW2 PW1 PW0
0016
PN4 PN3 PN2
0 0 0 000 0 0
SAD6 SAD5 SAD4 SAD3 SAD2 SAD1 SAD0 RBW
?
0016
MST TRX BB PIN AL AAS AD0 LRB 0 0 0 1 0 0 0 ?
BSEL1 BSEL0 10 BIT
SAD
ALS
ES0
BC2
BC1
BC0
ACK
ACK
BIT
FAST
MODE
CCR4
CCR3
CCR2
CCR1
CCR0
0016
0016
SM6 SM5
SM3 SM2 SM1 SM0 0 0 0 0 0 0 0 0
?
DA15 DA14 DA13 DA12 DA11 DA10 0 0 ? ? ? ? ? ?
DA25 DA24 DA23 DA22 DA21 DA20 0 0 ? ? ? ? ? ?
Fig. 3. Memory map of SFR (special function register) (1)
8
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