Rainbow Electronics AT91CAP9S250A - Manual (Page 408)

408
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
31.2 Block Diagram
Figure 31-1. Debug Unit Functional Block Diagram
Figure 31-2. Debug Unit Application Example
Peripheral DMA Controller
Baud Rate
Generator
DCC
Handler
ICE
Access
Handler
Transmit
Receive
Chip ID
Interrupt
Control
Peripheral
Bridge
Parallel
Input/
Output
DTXD
DRXD
Power
Management
Controller
ARM
Processor
force_ntrst
COMMRX
COMMTX
MCK
nTRST
Power-on
Reset
dbgu_irq
APB
Debug Unit
Table 31-1. Debug Unit Pin Description
Pin Name Description Type
DRXD Debug Receive Data Input
DTXD Debug Transmit Data Output
Debug Unit
RS232 Drivers
Programming Tool Trace Console Debug Console
Boot Program Debug Monitor Trace Manager