73M2910L Datasheet, PDF (1/35 Pages) List of Unclassifed Manufacturers – Microcontroller

DESCRIPTION
The 73M2910L high performance micro-controller is
based on the industry standard 8-bit 8032
implemented in an advanced submicron CMOS
process. The processor has the attributes of the
8032, including instruction cycle time, UART, timers,
interrupts, 256 bytes of on-chip RAM and
programmable I/O. The architecture has been
optimized for low power portable modem or
communication applications by integrating unique
features with the core CPU.
A key feature is a user friendly HDLC Packetizer,
accessed through the special function registers. It
has a serial I/O, hardware support for 16 and 32-bit
CRC, zero insert/delete control, a dedicated interrupt
and a clear channel mode for by-passing the
packetizer.
Other features include additional user programmable
I/O with programmable bank select and chip select
logic, designed to eliminate board level glue logic. It
also includes two general-purpose input ports with
programmable wakeup capability.
For devices that require non-multiplexed address
and data buses, eight latched outputs for the low
byte of the address are available.
(continued)
BLOCK DIAGRAM
73M2910L
Microcontroller
April 2000
FEATURES
• 8032 compatible instruction set
• 44 MHz Operation from 3.3 to 5.5V
• HDLC support logic (Packetizer, 16 and 32
CRC, zero ID)
• 24 pins for user programmable I/O ports
• 8 pins programmable chip select logic or I/O
for memory mapped peripheral eliminating
glue logic
• 3 external interrupt sources (programmable
polarity)
• 16 dedicated latched address pins
• Multiplexed data/address bus
• Instruction cycle time identical to 8032
• Buffered oscillator (or OSC/2) output pin
• 1.8432 MHz UART clock available
• Bank select circuitry to support up to 128k of
external program memory
• Also available in 100-Lead QFP and 100-Pin
PGA packages
(2:0)
INTERRUPT
CONTROL
USR 1.0
USR 1.1
USR 1.2
USR 1.3
TIMERS
RXD
TXD
PTXCLK
PTXD
PRXCLK
PRXD
UART
HDLC
TIME GEN
CPU
SFR BUS
RAM 256 X 8
ALE
MEM I/O CTRL
A (15:0)
D (7:0)
USR I/O
USR5 (1:0)
CSB (7:0)
USR3 (7:0)
USR I/O
USR2 (7:0)
USR1 (7:0)