mc9s08dz32 Freescale Semiconductor, Inc, mc9s08dz32 Datasheet - Page 87
mc9s08dz32
Manufacturer Part Number
mc9s08dz32
Description
Hcs08 Microcontrollers 8-bit Can Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S08DZ32.pdf
(412 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
mc9s08dz32ACLC
Manufacturer:
OMRON
Quantity:
20 000
Company:
Part Number:
mc9s08dz32ACLC
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
mc9s08dz32ACLF
Manufacturer:
FREESCALE
Quantity:
870
Company:
Part Number:
mc9s08dz32ACLF
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
mc9s08dz32ACLF
Manufacturer:
FREESCALE
Quantity:
20 000
Company:
Part Number:
mc9s08dz32ACLH
Manufacturer:
FREESCALE
Quantity:
201
- Current page: 87 of 412
- Download datasheet (5Mb)
to drive a greater load with the same switching speed as a low drive enabled pin into a smaller load.
Because of this, the EMC emissions may be affected by enabling pins as high drive.
6.3
Port A, port B, and port D pins can be configured as external interrupt inputs and as an external means of
waking the MCU from stop or wait low-power modes.
The block diagram for each port interrupt logic is shown
Writing to the PTxPSn bits in the port interrupt pin select register (PTxPS) independently enables or
disables each port pin. Each port can be configured as edge sensitive or edge and level sensitive based on
the PTxMOD bit in the port interrupt status and control register (PTxSC). Edge sensitivity can be software
programmed to be either falling or rising; the level can be either low or high. The polarity of the edge or
edge and level sensitivity is selected using the PTxESn bits in the port interrupt edge select register
(PTxES).
Synchronous logic is used to detect edges. Prior to detecting an edge, enabled port inputs must be at the
deasserted logic level. A falling edge is detected when an enabled port input signal is seen as a logic 1 (the
deasserted level) during one bus cycle and then a logic 0 (the asserted level) during the next cycle. A rising
edge is detected when the input signal is seen as a logic 0 during one bus cycle and then a logic 1 during
the next cycle.
6.3.1
A valid edge on an enabled port pin will set PTxIF in PTxSC. If PTxIE in PTxSC is set, an interrupt request
will be presented to the CPU. Clearing of PTxIF is accomplished by writing a 1 to PTxACK in PTxSC.
6.3.2
A valid edge or level on an enabled port pin will set PTxIF in PTxSC. If PTxIE in PTxSC is set, an interrupt
request will be presented to the CPU. Clearing of PTxIF is accomplished by writing a 1 to PTxACK in
PTxSC provided all enabled port inputs are at their deasserted levels. PTxIF will remain set if any enabled
port pin is asserted while attempting to clear by writing a 1 to PTxACK.
Freescale Semiconductor
PTxn
PTxn
PTxES0
PTxESn
Pin Interrupts
1
0
1
0
S
S
Edge Only Sensitivity
Edge and Level Sensitivity
PTxPS0
PTxPSn
Figure 6-2. Port Interrupt Block Diagram
MC9S08DZ60 Series Data Sheet, Rev. 3
PTxMOD
V
DD
D
CK
CLR
Q
Figure
INTERRUPT FF
PORT
6-2.
RESET
PTxACK
STOP
Chapter 6 Parallel Input/Output Control
SYNCHRONIZER
STOP BYPASS
BUSCLK
PTxIE
PTxIF
PTx
INTERRUPT
REQUEST
87
Related parts for mc9s08dz32
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: