mc68hc05pv8a Freescale Semiconductor, Inc, mc68hc05pv8a Datasheet - Page 107
mc68hc05pv8a
Manufacturer Part Number
mc68hc05pv8a
Description
Mc68hc05pv8a Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC05PV8A.pdf
(196 pages)
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7.6.5 Port C Low Side Driver
MC68HC(8)05PV8/A — Rev. 1.9
the software should take care to switch off the driver as soon as possible
whenever a short-circuit occurs. To detect such a condition the PC4CL
(Bit 6) in the Interrupt Status Register should be polled.
MC68HC(8)05PV8 (maskset J47D and J31D):
PC4CL - Port C4 in current limit mode
MC68HC05PV8A (maskset K20R):
PC4CL - Port C4 in current limit mode
If the timer input capture 1 is configured to Port C4, the state of the PC4
pin is transfered to the timer module input capture, the input status can
be polled by reading the TCAP1 bit in the Port B Data Register.
The port C pins PC5–6 comprise of two low side driver channels which
are shared with the PWM function. The channels can either be controlled
directly by the data register or are linked to the PWM function (see
Port C PWM
The low side driver channels are open-drain outputs with an internal
Zener diode. The diode clamps the maximum output voltage and limits
the turn-off time of inductive loads (see
Reset:
$0029
Read:
Write:
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = current on PC4 exceeds limit
0 = current on PC4 below limit
1 = current on PC4 below limit
0 = current on PC4 exceeds limit
RCON
Bit 7
NA
Figure 7-13 Interrupt Status Register (INTSR)
Channel).
Go to: www.freescale.com
PC4CL
Input/Output Ports
0/1
6
5
0
0
4
0
0
Figure
3
0
0
7-14).
HTIF
Port C (High Voltage Port)
2
?
Input/Output Ports
HVIF
1
0
Technical Data
LVIF
Bit 0
7.6.2
0
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