AN4035 datasheet(14/42 Pages) STMICROELECTRONICS

Nome de Peças	AN4035

Descrição Electrónicos	Flash programming through

PDF	42 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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14 / 42 page

On-Chip Emulation (OnCE)

AN4035

14/41

Doc ID 022669 Rev 2

TEST/IDLE state. The state machine is returned to the RUN-TEST/IDLE state when the

write is complete.

Figure 6.

Signal transitions for enabling the OnCE TAP controller

3.2

OnCE register access

The OnCE module provides several registers for static debug support. The OnCE command

and is used to access other OnCE resources.

3.3

OnCE command register

The OnCE command register (OCMD) is a 10-bit shift register that receives its serial data

from the TDI pin and acts as the IR register of the TAP controller state machine. The OCMD

is updated when the TAP controller enters the UPDATE-IR state. It contains fields for

Figure 5.

Steps for enabling the OnCE TAP controller

TCK tick

TMS

TDI

Resulting state

SELECT-DR-SCAN

SELECT-IR-SCAN

CAPTURE-IR

SHIFT-IR

UPDATE-IR

RUN-TEST/IDLE

AN4035 Folha de dados(PDF) 14 Page - STMicroelectronics