Z0847006PSG Zilog, Z0847006PSG Datasheet - Page 137
Z0847006PSG
Manufacturer Part Number
Z0847006PSG
Description
IC 6MHZ Z80 NMOS DART 40-DIP
Manufacturer
Zilog
Series
Z80r
Datasheet
1.Z0847006PSG.pdf
(330 pages)
Specifications of Z0847006PSG
Processor Type
Z80
Features
Dual Channel Asynchronous Receiver/Transmitter (DART)
Speed
6MHz
Voltage
5V
Mounting Type
Through Hole
Package / Case
40-DIP (0.620", 15.75mm)
Mounting Style
Through Hole
Cpu Speed
6MHz
Digital Ic Case Style
DIP
No. Of Pins
40
Supply Voltage Range
5V
Operating Temperature Range
0°C To +70°C
Svhc
No SVHC (18-Jun-2010)
Base Number
847006
Rohs Compliant
Yes
Clock Frequency
6MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
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Part Number:
Z0847006PSG
Manufacturer:
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UM008101-0601
interrupts and reinitialization of the status byte as well as many other func-
tions, including class and mode designation, port designation, address and
block-length designation.
Table 15 lists the order in which control bytes must be written for the
initialization or reinitialization because of program abort. Some of these
control bytes may not be relevant to a specific application. All commands
referred to are WR6 control bytes. Thirty-five control bytes occur when all
of the control bytes are written.
All control bytes written to the DMA disable the DMA, except the
ENABLE DMA command and possibly also the REINITIALIZE STATUS
BYTE command and the WR0 control byte (when changing transfer direc-
tions). The ENABLE DMA command must always be the last command
written after any communication between the CPU and DMA if the DMA
is to continue operating. Furthermore, communication with the DMA can
only occur when the CPU is bus master.
Table 15. Control Byte Order
Initialization/Reinitialization Sequence
DISABLE DMA Command
RESET Command (Multiple)
WR0 Control Bytes
WR1 Control Bytes
WR2 Control Bytes
WR3 Control Bytes
WR4 Control Bytes
WR5 Control Bytes
RESET PORT A TIMING Command
RESET PORT B TIMING Command
LOAD Command
Maximum Number of Z80 CPU
Bytes
1
6
5
2
2
3
5
1
1
1
1
< % 2 7 2 G T K R J G T C N U
Direct Memory Access
7 U G T / C P W C N
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