Z85C3010PSG Zilog, Z85C3010PSG Datasheet - Page 160

• Manufacturer Part Number: Z85C3010PSG
• Description: IC 10MHZ Z8500 CMOS SCC 40-DIP
• Manufacturer: Zilog
• Series: SCCr

Specifications of Z85C3010PSG

• Processor Type: Z80
• Features: Error Detection and Multiprotocol Support
• Speed: 10MHz
• Voltage: 5V
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.620", 15.75mm)
• Cpu Speed: 8MHz
• 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: 85
• Rohs Compliant: Yes
• Clock Frequency: 10MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3934; Z85C3010PSG

UM010901-0601
INTRODUCTION
This Application Note describes the design of a system
using a Z80180 MPU (Microprocessor Unit) and a Z85C30
SCC (Serial Communications Controller), both running at
10 MHz. Hereinafter, all references are to the Z180™ and
SCC.
The system board is a vehicle for demonstration and
evaluation of the 10 MHz interface and includes the
following parts:
The Z180 is a Z80-compatible High Integration device with
various peripherals on-board. Using this device as an
alternative to the Z80 CPU, reduces the number of parts
and board space while increasing processing speed and
reliability.
B
Z8018010VSC Z180 MPU 10 MHz, PLCC package
Z85C3010VSC C-MOS Z8530 SCC Serial Com-
munication Controller, 10 MHz, PLCC package
27C256 EPROM
55257 Static RAM
uild a simple system to prove and test the Z180 MPU interfacing the SCC at 10 MHz.
Replacing the Z80 with the Z180 provides higher integration, reduced parts, more board
space, increased processing speed, and greater reliability.
T
WITH THE
HE
Z180
™
SCC
A
The serial communication devices on the Z180 are: two
asynchronous channels and one clocked serial channel.
This means handling synchronous serial communications
protocols requires an off-chip “multi-protocol serial
communication controller.” The SCC is the ideal device for
this purpose.
Zilog’s SCC is the multi-protocol (@ 10 MHz) universal
serial communication controller which supports most serial
communication applications including Monosync, Bisync
and SDLC at 2.5 Mbits/sec speeds. Further, the wide
acceptance of this device by the market ensures it is an
“industry standard” serial communication controller. Also,
the Z180 has special numbers for system clock
frequencies of 6.144 - and 9.216 MHz which generate
exact baud rates for on-chip asynchronous serial
communication channels. This is due to the SCC’s on-
chip, 16-bit wide baud rate generator for asynchronous
ASCI communications.
The following 10 MHz interface explanation defines how
the interrupt structure works. Also included is a discussion
of the hardware and software considerations involved in
running
Application Note assumes the reader has a strong working
knowledge of the Z180 and SCC; this is not a tutorial for
each device.
I
PPLICATION
NTERFACED
AT
the
system’s
MHZ
N
OTE
communication
7
board.
6-25
This
7