参数资料
型号: ATAM893T-TKQ
厂商: Atmel
文件页数: 93/98页
文件大小: 0K
描述: IC MON TIRE-PRESS ATARX9X SER
标准包装: 4,000
系列: MARC4
核心处理器: MARC4
芯体尺寸: 4-位
速度: 4MHz
连通性: SSI(2 线,3 线)
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 16
程序存储器容量: 4KB(4K x 8)
程序存储器类型: EEPROM
EEPROM 大小: 64 x 16
RAM 容量: 256 x 4
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 6.5 V
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 20-SOIC(0.209",5.30mm 宽)
包装: 带卷 (TR)
93
4680C–4BMCU–01/05
ATAM893-D
12. Emulation
The basic function of emulation is to test and evaluate the customer's program and hardware in
real time. This therefore enables the analysis of any timing, hardware or software problem. For
emulation purposes, all MARC4 controllers include a special emulation mode. In this mode, the
internal CPU core is inactive and the I/O buses are available via Port 0 and Port 1 to allow an
external access to the on-chip peripherals. The MARC4 emulator uses this mode to control the
peripherals of any MARC4 controller (target chip) and emulates the lost ports for the application.
The MARC4 emulator can stop and restart a program at specified points during execution, mak-
ing it possible for the applications engineer to view the memory contents and those of various
registers during program execution. The designer also gains the ability to analyze the executed
instruction sequences and all the I/O activities.
Figure 12-1. MARC4 Emulation
MARC4 target chip
CORE
(inactive)
P
o
rt
1
P
o
rt
0
Application-specific hardware
Peripherals
MARC4 emulator
Program
memory
Trace
memory
Control
logic
Personal computer
CORE
MARC4
emulation-CPU
I/O control
I/O bus
Port 0
Port 1
SYSCL/
TCL,
TE, NRST
Emulation control
Emulator target board
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