R1122I Datasheet, PDF (3/5 Pages) RDC Semiconductor – 16-BIT RISC MICROCONTROLLER

RDC®
RISC DSP Communication
R1122I
16-BIT RISC MICROCONTROLLER
2. Block Diagram
CLKOUTA
INT2/INTA0
INT1/SELECT
INT3/INTA1/IRQ
CLKOUTB
INT4
INT0 NMI
X1
X2
PLL
VCC
Clock & Power
GND
Management
Interrupt
Control Unit
RST
TMROUT0 TMROUT1
TMRIN0 TMRIN1
Timer Control
Unit
DRQ0 DRQ1
DMA
Unit
LCS/ONCE0
MCS3/RFSH
MCS2-MCS0
UCS/ONCE1
PCS3-PCS0
PCS5/A1
PCS6/A2
Chip
Select
Unit
PSRAM
Control
Unit
ARDY
SRDY
S2~S0
DT/R
DEN
HOLD
HLDA
S6/CLKDIV2
UZI
Refresh
Control
Unit
Bus
Interface
Unit
Instruction
Queue (64bits)
Instruction
Decoder
Control Signal
Register
File
General,
Segment,
Eflag Register
ALU
(Special,
Logic,
Adder,
BSF)
A19~A0
AD15~AD0
ALE
RD
WHB
WLB
WR
BHE/ADEN
Micro
ROM
EA / LA
Address
PIO
Unit
Asynchro-
nous Serial
TXD
Port
RXD
Execution
Unit
Synchronous
Serial Interface
SCLK
SDATA
SDEN0 SDEN1
Specifications subject to change without notice, contact your sales representatives for the most update information.
Page 3 of 5
REV 1.0 Jun.13 2006