参数资料
型号: MCF5235CVM100
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 100 MHz, RISC PROCESSOR, PBGA256
封装: MAPBGA-256
文件页数: 24/76页
文件大小: 2665K
代理商: MCF5235CVM100
30
MCF523x Integrated Microprocessor Hardware Specifications
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Chip Configuration Mode—Device Operating Options
Clock mode:
— Normal PLL with external crystal
— Normal PLL with external clock
— 1:1 PLL Mode
— External oscillator mode (no PLL)
Chip Select Configuration:
— PADDR[7:5] configured as chip select(s) and/or address line(s)
– PADDR[7:5] configured as A23-A21 (default)
– PADDR configured as CS6, PADDR[6:5] as A22-A21
– PADDR[7:6] configured as CS[6:5], PADDR5 as A21
– PADDR[7:5] configured as CS[6:4]
3.1.1
Chip Configuration Pins
Table 19. Configuration Pin Descriptions
Pin
Chip Configuration
Function
Pin State/Meaning
Comments
RCON
Chip configuration
enable
1Disabled
0 Enabled
Active low: if asserted, then all
configuration pins must be driven
appropriately for desired operation
D26, D17, D16
Select chip
operating mode
111 Master
110 Reserved
101 Reserved
100 Reserved
0xx Reserved
D19, D18
Select external boot
device data port size
00,11 External (32-bit)
10 External (8-bit)
01 External (16-bit)
Value read defaults to 32-bit
D21
Select output pad
drive strength
1Full
0 Partial
CLKMOD1,
CLKMOD0
Select clock mode
00 External clock mode (no
PLL)
01 1:1 PLL mode
10 Normal PLL with external
clock reference
11 Normal PLL with crystal
clock reference
VDDPLL must be supplied if a PLL
mode is selected
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