AT91SAM7S32B-MU Atmel, AT91SAM7S32B-MU Datasheet - Page 47

• Manufacturer Part Number: AT91SAM7S32B-MU
• Description: IC MCU ARM7 32KB FLASH 48-VQFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S32B-MU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

12. Debug and Test Features
12.1
12.2
6175K–ATARM–30-Aug-10
Description
Block Diagram
The AT91SAM7S Series Microcontrollers feature a number of complementary debug and test
capabilities. A common JTAG/ICE (EmbeddedICE) port is used for standard debugging func-
tions, such as downloading code and single-stepping through programs. The Debug Unit
provides a two-pin UART that can be used to upload an application into internal SRAM. It man-
ages the interrupt handling of the internal COMMTX and COMMRX signals that trace the activity
of the Debug Communication Channel.
A set of dedicated debug and test input/output pins gives direct access to these capabilities from
a PC-based test environment.
Figure 12-1. Debug and Test Block Diagram
PDC
Boundary
ARM7TDMI
TAP
DBGU
ICE
ICE/JTAG
AT91SAM7S Series Preliminary
TAP
Reset
and
Test
POR
TMS
TCK
TDI
JTAGSEL
TDO
DTXD
DRXD
TST
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