Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼

Delete All
ON OFF
ALLDATASHEET.ES

X  

Preview PDF Download HTML

MC908QT2MFQE Datasheet(PDF) 51 Page - Freescale Semiconductor, Inc

No. de pieza MC908QT2MFQE
Descripción Electrónicos  M68HC08 Microcontrollers
Download  168 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  FREESCALE [Freescale Semiconductor, Inc]
Página de inicio  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC908QT2MFQE Datasheet(HTML) 51 Page - Freescale Semiconductor, Inc

Back Button MC908QT2MFQE Datasheet HTML 47Page - Freescale Semiconductor, Inc MC908QT2MFQE Datasheet HTML 48Page - Freescale Semiconductor, Inc MC908QT2MFQE Datasheet HTML 49Page - Freescale Semiconductor, Inc MC908QT2MFQE Datasheet HTML 50Page - Freescale Semiconductor, Inc MC908QT2MFQE Datasheet HTML 51Page - Freescale Semiconductor, Inc MC908QT2MFQE Datasheet HTML 52Page - Freescale Semiconductor, Inc MC908QT2MFQE Datasheet HTML 53Page - Freescale Semiconductor, Inc MC908QT2MFQE Datasheet HTML 54Page - Freescale Semiconductor, Inc MC908QT2MFQE Datasheet HTML 55Page - Freescale Semiconductor, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 51 / 168 page
background image
Input/Output Registers
MC68HC908QY/QT Family Data Sheet, Rev. 6
Freescale Semiconductor
51
4.6 Input/Output Registers
The AWU shares registers with the keyboard interrupt (KBI) module and the port A I/O module. The
following I/O registers control and monitor operation of the AWU:
Port A data register (PTA)
Keyboard interrupt status and control register (KBSCR)
Keyboard interrupt enable register (KBIER)
4.6.1 Port A I/O Register
The port A data register (PTA) contains a data latch for the state of the AWU interrupt request, in addition
to the data latches for port A.
AWUL — Auto Wakeup Latch
This is a read-only bit which has the value of the auto wakeup interrupt request latch. The wakeup
request signal is generated internally. There is no PTA6 port or any of the associated bits such as
PTA6 data direction or pullup bits.
1 = Auto wakeup interrupt request is pending
0 = Auto wakeup interrupt request is not pending
NOTE
PTA5–PTA0 bits are not used in conjuction with the auto wakeup feature.
To see a description of these bits, see 12.2.1 Port A Data Register.
4.6.2 Keyboard Status and Control Register
The keyboard status and control register (KBSCR):
Flags keyboard/auto wakeup interrupt requests
Acknowledges keyboard/auto wakeup interrupt requests
Masks keyboard/auto wakeup interrupt requests
Address: $0000
Bit 7
654321
Bit 0
Read:
0
AWUL
PTA5
PTA4
PTA3
PTA2
PTA1
PTA0
Write:
Reset:
0
0
Unaffected by reset
= Unimplemented
Figure 4-2. Port A Data Register (PTA)
Address: $001A
Bit 7
654321
Bit 0
Read:
0000
KEYF
0
IMASKK
MODEK
Write:
ACKK
Reset:
00000000
= Unimplemented
Figure 4-3. Keyboard Status and Control Register (KBSCR)


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99  100   ...More


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn