scn26562 NXP Semiconductors, scn26562 Datasheet - Page 4

• Manufacturer Part Number: scn26562
• Description: Dual Universal Serial Communications Controller Duscc
• Manufacturer: NXP Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
1995 May 1
RTxDRQAN/GPO1AN
RTxDRQBN/GPO1BN
Dual universal serial communications controller (DUSCC)
RTxDAKAN/GPI1AN
RTxDAKBN/GPI1BN
TxDRQAN/GPO2AN
TxDRQBN/GPO2BN
RTSBN/SYNOUTBN
RTSAN/SYNOUTAN
TxDAKAN/GPI2AN
TxDAKBN/GPI2BN
DCDBN/SYNIBN
DCDAN/SYNIAN
CTSAN/LCAN
CTSBN/LCBN
TRxCA/B
RTxCA/B
RESETN
X1/CLK
EOPN
IACKN
A1–A6
RDYN
WRN
IRQN
RDN
CEN
X2
D0–D7
OSCILLATOR
INTERFACE
INTERFACE
FUNCTION
INTERRUPT
SPECIAL
CONTROL
ICRA/B
IERA/B
BUFFER
DMA
PINS
MPU
IVRM
IVR
BUS
DUSCC
LOGIC
Figure 2. Block Diagram
INTERFACE/
OPERATION
CONTROL
ADDRESS
CONTROL
DECODE
DECODE
ICTSRA/B
TRSRA/B
CMR1A/B
CMR2A/B
OMRA/B
CCRA/B
PCRA/B
RSRA/B
DMA
R/W
GSR
4
GENERATOR
MODE AND
TIMING A/B
SPEC CHAR
TRANS CLK
TRANSMIT
GEN LOGIC
CHANNEL
RCVR CLK
SHIFT REG
TIMER A/B
TRANSMIT
RECEIVER
COMPARE
DPLL CLK
COUNTER
RECEIVER
DPLLA/B
CTPRHA/B
CTPRLA/B
TX SHIFT
MUX A/B
MUX A/B
C/T CLK
CTCRA/B
ACCUM
BISYNC
4 DEEP
4 DEEP
CTHA/B
CTLA/B
TPRA/B
TTRA/B
RPRA/B
RTRA/B
S2RA/B
LOGIC
S1RA/B
RCVR
MUX
FIFO
MUX
FIFO
A/B
REG
CRC
CRC
BRG
A/B
SCN26562
Product specification
TxD A/B
RxD A/B
SD00204