R1120 RDC [RDC Semiconductor], R1120 Datasheet - Page 3

• Manufacturer Part Number: R1120
• 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
PCS3_n~PCS0_n
LCS_n/ONCE0_n
MCS3_n/RFSH_n
UCS_n/ONCE1_n
Block Diagram
S6/CLKDIV2_n
D
D
MCS[2:0]
S2_n~S0_n
PCS5_n/A1
PCS6_n/A2
DT/R_n
RST_n
DEN_n
UZI_n
C
C
ARDY
SRDY
HOLD
HLDA
VCC
GND
A[19:0]
AD[7:0]
®
®
AO[15:8]
R
R
X1
I
I
S
S
C
C
Management
Select
Interface
D
D
Clock and
Chip
Unit
S
S
Control
Refresh
Control
P
P
PSRAM
Power
ALE
Unit
Unit
Unit
C
C
Bus
X2
o
o
CLKOUTA
m
m
RFSH2_n/ADEN_n
m
m
u
u
n
n
CLKOUTB
WR_n
i
i
c
c
a
a
t
t
i
i
o
o
WB_n
n
n
INT3/INTA1_n/IRQ
RD_n
INT6~4
Eflag Register
INT2/INTA0_n
Control Unit
Queue (64bits)
Interrupt
Register
General,
Segment,
Instruction
Instruction
(Special,
File
Logic,
Adder,
Decoder
ALU
BSF)
INT1/SELECT_n
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
DRQ0
nous Serial
nous Serial
Unit
Asynchro-
Asynchro-
DMA
REV 1.0 Jul. 28 2005
Port0
Port1
Unit
DRQ1
PIO
R1120
CTS0_n/ENRX0_n
PIO[31:0]
TXD0
RXD0
TXD1
RXD1
CTS1_n/ENRX1_n
RTS0_n/RTR0_n
RTS1_n/RTR1_n