R8800I RDC [RDC Semiconductor], R8800I Datasheet - Page 3

• Manufacturer Part Number: R8800I
• Description: 16-BIT RISC MICROCONTROLLER
• Manufacturer: RDC [RDC Semiconductor]

R
2.
Specifications subject to change without notice, contact your sales representatives for the most update information.
R
MCS2-MCS0
PCS3-PCS0
S6/CLKDIV2
Block Diagram
LCS/ONCE0
MCS3/RFSH
UCS/ONCE1
D
D
PCS5/A1
PCS6/A2
S2~S0
ARDY
SRDY
DT/R
HOLD
HLDA
VCC
GND
RST
DEN
UZI
C
C
A19~A0
AD15~AD0
®
®
X1
R
R
I
I
Management
Select
S
Interface
ALE
S
Clock and
C
C
Chip
Unit
Control
Refresh
Control
D
PSRAM
D
Power
Unit
Unit
Unit
S
S
Bus
X2
P
P
BHE/ADEN
CLKOUTA
C
C
o
o
m
m
WR
m
m
u
u
CLKOUTB
WLB
n
n
i
i
c
c
a
a
WHB
t
t
i
i
o
o
INT3/INTA1/IRQ
n
n
RD
INT2/INTA0
INT4
Eflag Register
Control Unit
Queue (64bits)
Interrupt
Register
General,
Segment,
Instruction
Instruction
(Special,
File
Logic,
Adder,
Decoder
BSF)
ALU
INT1/SELECT
INT0
Control Signal
NMI
Page 3 of 5
TMRIN0
Timer Control
TMROUT0
16-BIT RISC MICROCONTROLLER
Execution
Unit
Micro
EA / LA
Address
TMRIN1
ROM
Unit
TMROUT1
Serial Interface
SCLK
Synchronous
DRQ0
SDEN0 SDEN1
nous Serial
Asynchro-
REV 1.0 Oct.26 2006
Unit
DMA
Port
Unit
DRQ1
PIO
SDATA
R8800I
TXD
RXD
PIO31~0