MC9S08GT16CFB Freescale Semiconductor, MC9S08GT16CFB Datasheet - Page 86
MC9S08GT16CFB
Manufacturer Part Number
MC9S08GT16CFB
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S08GT16CFB.pdf
(290 pages)
Specifications of MC9S08GT16CFB
Cpu Family
HCS08
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
SCI/SPI
Program Memory Type
Flash
Program Memory Size
16KB
Total Internal Ram Size
1KB
# I/os (max)
36
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
2.08V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
44
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant
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Chapter 6 Parallel Input/Output
PTASEn — Slew Rate Control Enable for Port A Bit n (n = 0–7)
PTADDn — Data Direction for Port A Bit n (n = 0–7)
6.6.2
Port B includes eight general-purpose I/O pins that share with the ATD function. Port B pins used as
general-purpose I/O pins are controlled by the port B data (PTBD), data direction (PTBDD), pullup enable
(PTBPE), and slew rate control (PTBSE) registers.
If the ATD takes control of a port B pin, the corresponding PTBDD, PTBSE, and PTBPE bits are ignored.
When a port B pin is being used as an ATD pin, reads of PTBD will return a 0 of the corresponding pin,
provided PTBDD is 0.
86
For port A pins that are outputs, these read/write control bits determine whether the slew rate
controlled outputs are enabled. For port A pins that are configured as inputs, these bits are ignored.
These read/write bits control the direction of port A pins and what is read for PTAD reads.
PTBD
PTBPE
PTBSE
PTBDD
1 = Slew rate control enabled.
0 = Slew rate control disabled.
1 = Output driver enabled for port A bit n and PTAD reads return the contents of PTADn.
0 = Input (output driver disabled) and reads return the pin value.
Port B Registers (PTBD, PTBPE, PTBSE, and PTBDD)
Reset:
Reset:
Reset:
Reset:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
PTBPE7
PTBSE7
PTBDD7
PTBD7
Bit 7
0
0
0
0
PTBPE6
PTBSE6
PTBDD6
MC9S08GB/GT Data Sheet, Rev. 2.3
PTBD6
Figure 6-10. Port B Registers
6
0
0
0
0
PTBDD5
PTBPE5
PTBSE5
PTBD5
5
0
0
0
0
PTBDD4
PTBPE4
PTBSE4
PTBD4
4
0
0
0
0
PTBDD3
PTBPE3
PTBSE3
PTBD3
3
0
0
0
0
PTBDD2
PTBPE2
PTBSE2
PTBD2
2
0
0
0
0
PTBDD1
PTBPE1
PTBSE1
PTBD1
Freescale Semiconductor
1
0
0
0
0
PTBDD0
PTBPE0
PTBSE0
PTBD0
Bit 0
0
0
0
0
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