P89LPC931FDH NXP Semiconductors, P89LPC931FDH Datasheet - Page 31

• Manufacturer Part Number: P89LPC931FDH
• Description: MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 28-Pin TSSOP Tube
• Manufacturer: NXP Semiconductors

Specifications of P89LPC931FDH

• Package: 28TSSOP
• Device Core: 80C51
• Family Name: 89LP
• Maximum Speed: 18 MHz
• Ram Size: 256 Byte
• Program Memory Size: 8 KB
• Operating Supply Voltage: 2.5|3.3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 26
• Interface Type: I2C/SPI/UART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 2

Philips Semiconductors
9397 750 14472
Product data
8.19 Serial Peripheral Interface (SPI)
LPC930/931 provides another high-speed serial communication interface - the SPI
interface. SPI is a full-duplex, high-speed, synchronous communication bus with two
operation modes: Master mode and Slave mode. Up to 4.5 Mbit/s can be supported
in Master or 3.0 Mbit/s in Slave mode. It has a Transfer Completion Flag and Write
Collision Flag Protection.
Fig 8. I
P1.3/SDA
P1.2/SCL
2
C-bus serial interface block diagram.
Rev. 05 — 15 December 2004
OUTPUT
OUTPUT
FILTER
STAGE
FILTER
STAGE
INPUT
INPUT
P1.3
P1.2
STATUS BUS
OVERFLOW
TIMER 1
I2SCLH
I2SCLL
I2CON
8-bit microcontrollers with two-clock 80C51 core
I2STAT
ARBITRATION &
BIT COUNTER /
SERIAL CLOCK
SYNC LOGIC
GENERATOR
SCL DUTY CYCLE REGISTERS
ADDRESS REGISTER
CONTROL REGISTERS &
SHIFT REGISTER
DECODER
COMPARATOR
STATUS
STATUS REGISTER
P89LPC930/931
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
8
CONTROL
TIMING
LOGIC
&
I2DAT
8
8
8
ACK
I2ADR
CCLK
INTERRUPT
002aaa421
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