ATSAM4LS4BA-AU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATSAM4LS4BA-AU

ATSAM ARM-based Flash MCU

Atmel Corporation 

8.7.3 Block Diagram

Figure 8-3. Enhanced Debug Port Block Diagram

ENHANCED DEBUG PORT

SWJ-DP

TMS

swdio

TDI

traceswo

SW-DP

TDO

TCK

swclk

tms

tdi

JTAG-DP

tdo

tck

RESET_N

test_tap_sel

tms

tdi

BSCAN-TAP

tdo

tck

tck

reset_n

JTAG-FILTER

ATSAM4L8/L4/L2

DAP Bus

boundary_scan

EDP Core reset request

8.7.4 I/O Lines Description

Table 8-1. I/O Lines Description

Name

JTAG Debug Port

Type Description

TCK/SWCLK

I Debug Clock

TDI

I Debug Data in

TDO/TRACESWO

O Debug Data Out

TMS/SWDIO

I Debug Mode Select

RESET_N

I Reset

SWD Debug Port

Type Description

I Serial Wire Clock

- NA

O Trace asynchronous Data Out

I/O Serial Wire Input/Output

I Reset

68

42023GS–SAM–03/2014

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