参数资料
型号: MC68HC16S2CPU25
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, 25.17 MHz, MICROCONTROLLER, PQFP100
封装: TQFP-100
文件页数: 61/104页
文件大小: 812K
代理商: MC68HC16S2CPU25
MOTOROLA
MC68HC16S2
6
MC68HC16S2TS/D
1.4 Address Map
Figure 3 is a map of the MCU internal addresses. Although there are 24 intermodule bus (IMB) address
lines, the CPU16 uses only ADDR[19:0]. ADDR[23:20] follow the logic state of ADDR19. Addresses
$080000 to $F7FFFF are not accessible. The RAM array is positioned by the base address register in
the associated RAM control block. Unimplemented blocks are mapped externally.
Figure 3 MC68HC16S2 Address Map
1.5 Intermodule Bus
The intermodule bus (IMB) is a standardized bus developed to facilitate both design and operation of
modular microcontrollers. It contains circuitry to support exception processing, address space partition-
ing, multiple interrupt levels, and vectored interrupts. The standardized modules in the MC68HC16S2
communicate with one another and with external components through the IMB. Although the full IMB
supports 24 address and 16 data lines, the MC68HC16S2 uses only 16 data lines and 20 address lines.
Because the CPU16 uses only 20 address lines, ADDR[23:20] follow the state of ADDR19.
$YFFA00
$YFFA7F
$YFFB00
$YFFB07
$000000
$FFFFFF
BASE
ADDRESS
SRAM ARRAY
2048 BYTES
SIM
128 BYTES
SRAM CTL
16S2 ADDRESS MAP
8 BYTES
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料
PDF描述
MC16S2CPU20B1 16-BIT, 20.97 MHz, MICROCONTROLLER, PQFP100
MC68HC16X1CTH 16-BIT, MROM, 16.78 MHz, MICROCONTROLLER, PQFP120
MC68HC24VP 16 I/O, PIA-GENERAL PURPOSE, PDIP40
MC68HC33CFG 48 I/O, PIA-GENERAL PURPOSE, PQFP100
MC68HC33FG 48 I/O, PIA-GENERAL PURPOSE, PQFP100
相关代理商/技术参数
参数描述
MC68HC16Z1CAG 制造商:Freescale Semiconductor 功能描述:
MC68HC16Z1CAG16 功能描述:16位微控制器 - MCU 16 BIT MCU 1K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC68HC16Z1CAG16 制造商:Freescale Semiconductor 功能描述:IC16-BIT MICROCONTROLLER
MC68HC16Z1CAG20 功能描述:16位微控制器 - MCU 16 BIT MCU 1K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC68HC16Z1CAG20 制造商:Freescale Semiconductor 功能描述:Microcontroller