3
Philips Semiconductors Product specification
TELX microcontrollers for CT0
handset/basestation applications
P8xCL883; P8xCL884
1 FEATURES
• Full static 80C51 CPU; enhanced 8-bit architecture with:
– Minimum 6 cycles per instruction (twice as fast as a
standard 80C51 core)
– Non-page oriented instructions
– Direct addressing
– Four 8-byte RAM register banks
– Stack depth limited only by available internal RAM
(maximum 256 bytes)
– Multiply, divide, subtract and compare instructions.
• 8-bit ports:
– P8xCL883: 3 (19 I/O lines)
– P8xCL884: 3 (18 I/O lines).
• Program Memory:
– P8xCL883/P8xCL884: 8-kbyte One Time
Programmable (OTP).
• 256-byte RAM
• 128-byte EEPROM Data Memory, accessed internally
via I
2
C-bus interface (P8xCL884 only)
• Amplitude Controlled Oscillator (ACO) suitable for
quartz crystal or ceramic resonator
• Improved Power-on/Power-off reset (POR) circuitry
• Low Voltage Detection (LVD) with 11 software
programmable levels
• Eight interrupts on Port 1:
– Edge or level sensitive triggering selectable via
software
– Power-saving use for keyboard control.
• Twenty source, twenty vector interrupt structure with two
priority levels
• Wake-up from Power-down mode via LVD or external
interrupts at Port 1
• DTMF generator (P8xCL884 only)
• MSK modem including Manchester encoder/decoder
with 2 digital outputs for analog cordless telephones
(standards CT0/CT1/CT1+)
• Two standard 16-bit timer/event counters
• Additional 16-bit timer/event counter with Capture,
Compare and Auto-reload function
• Watchdog Timer
• Full duplex enhanced UART with double buffering
• I
2
C-bus interface for serial transfer on two lines,
maximum 400 kHz
• Very low current consumption
• Single supply voltage: 2.7 to 3.6 V
• Frequency: 3.58 MHz
• Operating temperature: −25 to +70°C
• 28 pin SO package.
2 GENERAL DESCRIPTION
The P8xCL883/P8xCL884 are manufactured in an
advanced CMOS technology. The P8xCL883 is based on
single-chip technology and the P8xCL884 is based on
MCM (Multi-Chip-Module) technology as the EEPROM is
integrated on a separate chip.
The P8xCL883/P8xCL884 are 8-bit microcontrollers
especially suited for low cost analog cordless telephone
applications (CT0, CT1, CT1+ standards). For this
purpose, features like DTMF, EEPROM, MSK modem and
POR/LVD are integrated on-chip.
The device is optimized for low power consumption.
The P8xCL883/P8xCL884 have two software selectable
features for power reduction: Idle and Power-down modes.
In addition, all derivative blocks can switch off their clock if
they are inactive.
The instruction set of the P8xCL883/P8xCL884 is based
on that of the 80C51. The P8xCL883/P8xCL884 also
function as an arithmetic processor having facilities for
both binary and BCD arithmetic plus bit-handling
capabilities. The instruction set consists of over
100 instructions: 49 one-byte, 46 two-byte, and
16 three-byte. Due to the missing port P2, there is no
external data or memory access and the MOVX operations
cannot be used.
This data sheet details the specific properties of the
P8xCL883/P8xCL884; for details of the
P8xCL883/P8xCL884 core and the derivative functions
see the
“TELX family”
data sheet and
“Data Handbook
IC20; 80C51-based 8-bit Microcontrollers”
.