Z8523010PEG Zilog, Z8523010PEG Datasheet - Page 16
![IC 10MHZ ESCC XTEMP 40-DIP](/photos/6/57/65796/269-40-dip_sml.jpg)
Z8523010PEG
Manufacturer Part Number
Z8523010PEG
Description
IC 10MHZ ESCC XTEMP 40-DIP
Manufacturer
Zilog
Datasheet
1.Z8523008PSG.pdf
(117 pages)
Specifications of Z8523010PEG
Controller Type
Serial Communications Controller (SCC)
Interface
Bus
Voltage - Supply
4.5 V ~ 5.5 V
Current - Supply
5mA
Operating Temperature
-40°C ~ 100°C
Mounting Type
Through Hole
Package / Case
40-DIP (0.620", 15.75mm)
Operating Supply Voltage
5 V
Supply Current (max)
9 mA
Maximum Operating Temperature
+ 100 C
Minimum Operating Temperature
- 40 C
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-3920
Z8523010PEG
Z8523010PEG
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- Download datasheet (2Mb)
PS005303-0907
Table 2. ESCC Read Registers
Register Name
RR0
RR1
RR2A
RR2B
RR3A
RR4
RR5
RR6
RR7
RR8
RR9
RR10
RR11
RR12
RR13
RR14
RR15
There are 3 modes used to move data into and out of the ESCC:
•
•
•
The BLOCK TRANSFER mode can be implemented under CPU or DMA control.
POLLING
When POLLING, data interrupts are disabled, 3 registers in the ESCC are automatically
updated whenever any function is performed. For example, end-of-frame (EOF) in SDLC
mode sets a bit in one of these status registers. The purpose of POLLING is for the CPU to
periodically read a status register until the register contents indicate the need that data
requires transfer. RR0 is the only register that must be read to determine if data needs to be
transferred. An alternative to polling RR0 for each channel is to poll the Interrupt Pending
POLLING
INTERRUPT (vectored and non-vectored)
BLOCK TRANSFER
Functions
Transmit, Receive and External Status
Special Receive Condition Status Bits
Modified Interrupt Vector
Interrupt Pending Bits
WR4 Mirror if WR7’ bit D6 equals 1
WR5 Mirror, if WR7’ bit D6 equals 1
SDLC Frame LSB Byte Count, if WR15 bit D2 equals 1
SDLC Frame 10 X 19 FIFO Status and MSB Byte Count, if
WR15 bit DS equals 1
Receive Data FIFO, 8 Bits Deep
WR9 Mirror, If WR7’ bit D6 Equals 1
Miscellaneous Status Bits
WR11 Mirror, if WR7’ bit D6 Equals 1
Lower Byte of BRG Time Constant
Upper Byte of BRG Time Constant
WR14 Mirror, if WR7’ bit D6 Equals 1
WR 15 Mirror, if WR7’ bit D6 Equals 1
Unmodified Interrupt Vector
Product Specification
Functional Description
Z85230/Z80230
11
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