SM8521 Datasheet, PDF (4/56 Pages) Sharp Electrionic Components – 8-Bit Single-Chip Microcomputer

BLOCK DIAGRAM
RDB
WRB
INTB
NMIB
SM85CPU
RAM
1 k-BYTE
VR
SOUND
D/A
SOUND
GENERATOR
RXDB
TXDB
UART
SM8521
LCDC/DMA
RAM
4 k-BYTE
MMU
BUS CONTROLLER
TIMER 8-BIT : 2 CH
CLOCK
WATCHDOG TIMER
VA0-VA12
VD0-VD7
VRDB, VWRB
VCE0B, VCE1B
FR, LP, XC
XD0-XD3
YD, DOFFB
A0-A20
D0-D7
MCE0B, MCE1B
IOE0B, IOE1B
P0
P1
P2
P0 0
P10
P20
P0 1
P11
P21
P0 2
P12
P22
P0 3
P13
P23
P0 4
P14
P24
P0 5
P15
P25
P0 6
P16
P26
P0 7
P17
P27
VDD
GND RESETB M0-2
P3
P30
P31
P32
P33
OSC
P34
P35
P36
P37
X1
X2
CLK
OSC1
OSC2
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