SAM7S256_14 Datasheet, PDF (216/775 Pages) ATMEL Corporation – ARM-based Flash MCU

26.2 Block Diagram
Figure 26-1. Debug Unit Functional Block Diagram
Peripheral
Bridge
Peripheral DMA Controller
APB
Power
Management
Controller
Debug Unit
MCK
Baud Rate
Generator
Transmit
Receive
ARM ^R
Processor
nTRST
COMMRX
COMMTX
DCC
Handler
Power-on
Reset
ICE
Access
Handler
force_ntrst
Chip ID
Interrupt
Control
Parallel
Input/
Output
DTXD
DRXD
dbgu_irq
Table 26-1.
Pin Name
DRXD
DTXD
Debug Unit Pin Description
Description
Debug Receive Data
Debug Transmit Data
Debug Unit Application Example
Boot Program
Type
Input
Output
Debug Monitor
Trace Manager
Debug Unit
Programming Tool
RS232 Drivers
Debug Console
Trace Console
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
216