Z8523020VSC Zilog, Z8523020VSC Datasheet - Page 13

• Manufacturer Part Number: Z8523020VSC
• Description: IC 20MHZ ESCC 44-PLCC
• Manufacturer: Zilog

Specifications of Z8523020VSC

• Controller Type: Serial Communications Controller (SCC)
• Interface: Bus
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 9mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3057

Functional Description
PS005308-0609
The architecture of the ESCC is described based on its functionality as a:
•
•
The details of the communication between the receive and transmit logic of the system bus
are displayed in
the ESCC A and B channels are identical. For more information on SCC/ESCC and ISCC
Family of Products, refer to the respective User Manuals available for download from
www.zilog.com.
From Receiver
Data communications device, which transmits and receives data in a wide variety of
protocols
Microprocessor peripheral, in which the ESCC offers valuable features such as
vectored interrupts and DMA support
SYNC Register
Zero Insert
CRC-SDLC
20-Bit TX
CRC-Gen
WR7
Figure 5
Figure 5. ESCC Transmit Data Path
Internal Data Bus
SYNC Register
Shift Register
WR6
and
SYNC
SDLC
ASYNC
Figure 6
2 Bit Delay
MUX and
Transmit
on page 9. The features and data path for each of
WR8
Transmit Clock
TX FIFO
4 Bytes
NRZI Encode
Internal TXD
Final Tx
MUX
Product Specification
to Other Channel
Functional Description
Z80230/Z85230/L
TXD
8