![Infineon Technologies TC1784 Скачать руководство пользователя страница 956](http://html.mh-extra.com/html/infineon-technologies/tc1784/tc1784_user-manual_2055446956.webp)
TC1784
LMB External Bus Unit
User´s Manual
12-6
V1.1, 2011-05
EBUT13L-A, V1.16
12.3.10
Control of Pad Pull Up and Pull Down.
The EBU has no control of the Pull Up and Pull Down components in its pads. These are
all controlled by the GPIO blocks associated with the pads. The default, after reset, is for
the pull up component to be active. This default should be reprogrammed as required by
the applicatin during the initialisation of the EBU.
1) If the EBU is disabled by writing 00 to the EBUCON.ARBMODE field, there will be a delay before
the signals become available for GPIO usage as the EBU will wait for all pending external memory
accesses to be completed and the arbitration logic to return to the “nobus” state before releasing
the signals.
Table 12-5
Suggested Pull Component Configuration for EBU Signals
Signal/Pin
Configuration
of Pull
Component
AD[15:0] Pull
Up
A[20:16]
None
RD
None
RD/WR
None
ADV
None
BC[1:0]
None
WAIT
Pull Up
CS[3:0]
None
Содержание TC1784
Страница 1: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 3: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 950: ...TC1784 Direct Memory Access Controller DMA User s Manual 11 132 V1 1 2011 05 DMA V3 03 ...
Страница 1949: ...TC1784 General Purpose Timer Array GPTA v5 User s Manual 21 297 V1 1 2011 05 GPTA v5 V1 14 ...
Страница 2350: ...w w w i n f i n e o n c o m Published by Infineon Technologies AG Doc_Number ...