MC9S08RD32CDWE Freescale Semiconductor, MC9S08RD32CDWE Datasheet - Page 74

• Manufacturer Part Number: MC9S08RD32CDWE
• Description: IC MCU 32K FLASH 2K RAM 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HCS08r

Specifications of MC9S08RD32CDWE

• Core Processor: HCS08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: S08RD
• Core: HCS08
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: SCI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 39
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWS08
• Development Tools By Supplier: DEMO9S08RG60E
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Parallel Input/Output
6.3
The MC9S08RC/RD/RE/RG has a total of 39 parallel I/O pins distributed between four 8-bit ports and one
7-bit port. Not all pins are bonded out in all packages. Consult the pin assignment in
Connections,” for available parallel I/O pins. All of these pins are available for general-purpose I/O when
they are not used by other on-chip peripheral systems.
The following paragraphs discuss each port and the software controls that determine each pin’s use.
6.3.1
Port A is an 8-bit general-purpose I/O port shared with the KBI1 keyboard interrupt inputs. Bit 0 of port
A is an input-only pin.
Port A pins are available as general-purpose I/O pins controlled by the port A data (PTAD), data direction
(PTADD), and pullup enable (PTAPE) registers. Refer to
information about general-purpose I/O control.
Any of the port A pins can be configured as a KBI1 keyboard interrupt pin. Refer to the
(KBI) Module
6.3.2
Port B is an 8-bit general-purpose I/O port with two pins shared with the SCI and one pin shared with the
TPM. The port B output drivers are capable of high current drive.
Port B pins are available as general-purpose I/O pins controlled by the port B data (PTBD), data direction
(PTBDD), and pullup enable (PTBPE) registers. Refer to
information about general-purpose I/O control.
When the SCI module is enabled, PTB0 and PTB1 function as the transmit (TxD1) and receive (RxD1)
pins of the SCI. Refer to the
about using PTB0 and PTB1 as SCI pins.
The TPM can be configured to use PTB7 as either an input capture, output compare, or PWM pin. Refer
to the
74
Port B
Port A
Timer/PWM Module (TPM) Module
Pin Descriptions
Port A
Port B
chapter for more information about using port A pins as keyboard interrupt pins.
MCU Pin:
MCU Pin:
TPM1CH1
Serial Communications Interface (SCI) Module
KBI1P7
PTA7/
PTB7/
Bit 7
Bit 7
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
KBI1P6
PTA6/
PTB6
Figure 6-1. Port A Pin Names
Figure 6-2. Port B Pin Names
6
6
chapter for more information about using PTB7 as a timer pin.
KBI1P5
PTA5/
PTB5
5
5
KBI1P4
PTA4/
PTB4
4
Section 6.4, “Parallel I/O
4
Section 6.4, “Parallel I/O
KBI1P3
PTA3/
PTB3
3
3
KBI1P2
PTA2/
PTB2
2
2
chapter for more information
KBI1P1
PTA1/
PTB1/
RxD1
Controls,”
Controls,”
Chapter 2, “Pins and
Freescale Semiconductor
1
1
Keyboard Interrupt
KBI1P0
PTA0/
PTB0/
TxD1
Bit 0
Bit 0
for more
for more