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1 FEATURES

· 80C51 central processing unit (CPU)

· 16 kbytes on-chip ROM,

externally expandible to 64 kbytes

· 2 ′ 256 bytes on-chip RAM,

externally expandible to 64 kbytes

· Two standard 16-bit timers/counters

· One additional 16-bit timer/counter coupled to four

capture and three compare registers

· 10-bit ADC with 8 multiplexed analog inputs

· Two 8-bit resolution Pulse Width Modulated outputs

· 15 interrupt sources with 2 priority levels

(2 to 6 external interrupt sources possible)

· Five 8-bit I/O ports, plus one 8-bit input port shared

with analog inputs

· CAN-controller (CAN = Controller Area Network)

with DMA data transfer facility to internal RAM

· 1 Mbit/s CAN-controller with bus failure

management facility

· 1¤2AVDD reference voltage

· Full-duplex UART compatible with the standard 80C51

· On-chip Watchdog Timer (WDT)

· 1.2 to 16 MHz clock frequency.

2 GENERAL DESCRIPTION

The P8xC592 is a single-chip 8-bit high-performance

microcontroller with on-chip CAN-controller, derived from

the 80C51 microcontroller family.

It uses the powerful 80C51 instruction set.

Figure 1 shows a block diagram of the P8xC592.

The P8xC592 is manufactured in an advanced CMOS

process, and is designed for use in automotive and

general industrial applications. In addition to the 80C51

standard features, the device provides a number of

dedicated hardware functions for these applications.

Two versions of the P8xC592 will be offered:

· P80C592 (without ROM)

· P83C592 (with ROM).

Hereafter these versions will be referred to as P8xC592.

The temperature range includes (max. fCLK = 16 MHz):

· -40 to +85 °C version, for general applications

· -40 to +125 °C version for automotive applications.

The P8xC592 combines the functions of the P8xC552

(microcontroller) and the PCA82C200 (Philips

CAN-controller) with the following enhanced features:

· 16 kbytes Program Memory

· 2 ′ 256 bytes Data Memory

· DMA between CAN Transmit/Receive Buffer and

internal RAM.

The main differences between P8xC592 and P8xC552

are:

· 16 kbytes programmable ROM (P8xC552 has 8 kbytes)

· Additional 256 bytes RAM

· A CAN-controller instead of the I2C-serial interface.