R1122 Datasheet, PDF (3/5 Pages) RDC Semiconductor – 16-BIT RISC MICROCONTROLLER

RDC®
RISC DSP Communication
2. Block Diagram
R1122
16-BIT RISC MICROCONTROLLER
INT2/INTA0_n
INT1/SELECT_n
CLKOUTA INT3/INTA1_n/IRQ
CLKOUTB INT6~4
INT0 NMI
TMROUT0 TMROUT1
TMRIN0 TMRIN1
X1 ^X2
Clock and
VCC
Power
GND
Management
Interrupt
Control Unit
Timer Control
Unit
RST_n
LCS_n/ONCE0_n
MCS3_n/RFSH_n
MCS[2:0]
UCS_n/ONCE1_n
PCS3_n~PCS0_n
PCS5_n/A1
PCS6_n/A2
Chip
Select
Unit
PSRAM
Control
Unit
ARDY
SRDY
S2_n~S0_n
DT/R_n
DEN_n
HOLD
HLDA
S6/CLKDIV2_n
UZI_n
Refresh
Control
Unit
Bus
Interface
Unit
Instruction
Queue (64bits)
Instruction
Decoder
Control Signal
Register
File
General,
Segment,
Eflag Register
Micro
ROM
EA / LA
Address
ALU
(Special,
Logic,
Adder,
BSF)
Execution
Unit
DRQ0 DRQ1
DMA
Unit
PIO
Unit
PIO[31:0]
Asynchro-
nous Serial
Port0
Asynchro-
nous Serial
Port1
RTS0_n/RTR0_n
CTS0_n/ENRX0_n
TXD0
RXD0
RTS1_n/RTR1_n
CTS1_n/ENRX1_n
TXD1
RXD1
A[19:0]
RD_n
WB_n
AD[7:0]
WR_n
ALE
AO[15:8] RFSH2_n/ADEN_n
Specifications subject to change without notice, contact your sales representatives for the most update information.
Page 3 of 5
REV 1.0 Jun.05 2006