參數(shù)資料
型號: MCF5232CAB80
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 80 MHz, RISC PROCESSOR, PQFP160
封裝: QFP-160
文件頁數(shù): 7/76頁
文件大小: 2665K
代理商: MCF5232CAB80
MOTOROLA
MCF523x Integrated Microprocessor Hardware Specifications
15
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Signal Properties
External reset on the RSTOUT pin is software-assertable independent of chip reset state. There are also
software-readable status flags indicating the cause of the last reset.
1.3.23 GPIO
Like the MC68332, unused bus interface and peripheral pins on the MCF523x can be used as discrete
general-purpose inputs and outputs. These are managed by a dedicated GPIO module that logically groups
all pins into ports located within a contiguous block of memory-mapped control registers.
All of the pins associated with the external bus interface may be used for several different functions. Their
primary function is to provide an external memory interface to access off-chip resources. When not used for
this, all of the pins may be used as general-purpose digital I/O pins. In some cases, the pin function is set by
the operating mode, and the alternate pin functions are not supported. The digital I/O pins on the MCF523x
are grouped into 8-bit ports. Some ports do not use all eight bits. Each port has registers that configure,
monitor, and control the port pins.
2
Signal Descriptions
This section describes signals that connect off chip. It includes a table of signal properties, and detailed
discussion of the MCF523x signals.
2.1
Signal Properties
Table 2 lists all of the signals grouped by function. The “Dir” column is the direction for the primary
function of the pin.
Table 2. Signal Descriptions
Signal Name
GPIO
Alternate 1
Alternate 2
Qty.
Dir.
Pullup
Reset
RESET
1
I
Pullup
RSTOUT
1
O
Clock
EXTAL
1
I
XTAL
1
O
CLKOUT
1
O
Mode Selection
CLKMOD[1:0]
2
I/O
Pullup
RCON
1
I
Pullup
External Memory Interface and Ports
A[23:21]
PADDR[7:5]
CS[6:4]
3
O
A[20:0]
21
O
D[31:16]
16
I/O
D[15:8]
PDATAH[7:0]
8
I/O
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MCF5232CVM150J 功能描述:32位微控制器 - MCU V2CORE 64KSRAM RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT