参数资料
型号: AT91SAM7S32B-AU-999
厂商: Atmel
文件页数: 42/165页
文件大小: 0K
描述: IC MCU ARM7 32KB FLASH 48LQFP
产品培训模块: MCU Product Line Introduction
标准包装: 2,000
系列: SAM7S
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 55MHz
连通性: I²C,SPI,SSC,UART/USART
外围设备: 欠压检测/复位,DMA,POR,PWM,WDT
输入/输出数: 21
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 8K x 8
电压 - 电源 (Vcc/Vdd): 1.65 V ~ 1.95 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 48-LQFP
包装: 带卷 (TR)
配用: AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
AT91SAM7S-EK-ND - KIT EVAL FOR ARM AT91SAM7S
136
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
20.3
Serial Fast Flash Programming
The Serial Fast Flash programming interface is based on IEEE Std. 1149.1 “Standard Test Access Port and
Boundary-Scan Architecture”. Refer to this standard for an explanation of terms used in this chapter and for a
description of the TAP controller states.
In this mode, data read/written from/to the embedded Flash of the device are transmitted through the JTAG inter-
face of the device.
20.3.1
Device Configuration
In Serial Fast Flash Programming Mode, the device is in a specific test mode. Only a distinct set of pins is signifi-
cant. Other pins must be left unconnected.
Figure 20-7. Serial Programming
TDI
TDO
TMS
TCK
XIN
TST
VDDIO
PGMEN0
PGMEN1
0-50MHz
VDDIO
VDDCORE
VDDIO
VDDPLL
VDDFLASH
GND
VDDIO
GND
PGMEN2
Table 20-20. Signal Description List
Signal Name
Function
Type
Active
Level
Comments
Power
VDDFLASH
Flash Power Supply
Power
VDDIO
I/O Lines Power Supply
Power
VDDCORE
Core Power Supply
Power
VDDPLL
PLL Power Supply
Power
GND
Ground
Clocks
XIN
Main Clock Input.
This input can be tied to GND. In this
case, the device is clocked by the internal
RC oscillator.
Input
32 kHz to 50 MHz
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