參數資料
型號： P87C592EFA
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-bit microcontroller with on-chip CAN
中文描述： 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQCC68
文件頁數： 28/108頁
文件大?。?/td> 650K
代理商： P87C592EFA
1996 Jun 27
28
Philips Semiconductors
Product specification
8-bit microcontroller with on-chip CAN
P8xC592
13.3
Interface between CPU and CAN
The internal interface between the P8xC592's CPU and
on-chip CAN-controller is achieved via the following four
SFRs (see Fig.13):
CANADR, to point to a register of the CAN-controller
CANDAT, to read or write data
CANCON, to read interrupt flags and to write commands
CANSTA, to read status information and to write DMA
pointer.
Additionally, the DMA-logic allows a high-speed data
exchange between the CAN-controller and the CPU's
on-chip MAIN RAM. For more information, see
Section 13.5.15 “Handling of the CPU-CAN interface”.
13.4
Hardware blocks of the CAN-controller
The P8xC592 CAN-controller contains all necessary
hardware for high performance serial network
communications (see Fig.14 and Table 29).
It controls the communication flow through the area
network using the CAN-protocol. The CAN-controller
meets the following automotive requirements:
Short message length
Bus access priority, determined by the message
identifier
Powerful error handling capability
Configuration flexibility to allow area network expansion
Guaranteed latency time for urgent messages;
– The
latency time
defines the period between the
initiation (Transmission Request) and the start of the
transmission on the bus. The latency time strongly
depends on a large variety of bus-related conditions.
In the case of a message being transmitted on the
bus and one distortion, the latency time can be up to
149 bit times (worst case). For more information see
Chapter 22 “CAN application information”.
handbook, full pagewidth
CANADR
DBH
CANDAT
DAH
CANCON
D9H
CANSTA
D8H
ADDRESS
DATA
CAN
CONTROLLER
MAIN
RAM
CPU
DMA
LOGIC
internal
bus
4 special function
registers
MGA158
DMA bus
Fig.13 Interface between CPU and CAN-controller.
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P87C654X2FA 制造商:NXP Semiconductors 功能描述:P87C654X2FA 8bit microcontroller,33MHz
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P87C660X2BBD 功能描述:8位微控制器 -MCU 16K/512 OTP 12/6 CLK I2C PCA RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
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