D E M O 9 S 0 8 S F 4
J U N E 9 , 2 0 0 9
U S E R G U I D E
11
Buzzer
An externally modulated piezo-buzzer, with a center frequency of 2300 Hz for audible
applications is applied. A push-pull drive circuit allows the target MCU to easily drive the
buzzer. Figure 5 below shows the user jumper settings and MCU connections.
Figure 5: User Option Jumper Settings
Jumper
On
Off
MCU PORT
SW1
Enable SW1
Disable SW1
PTA2/KBIP2/TPM1C0/FDSOUT0
SW2
Enable SW2
Disable SW2
PTA3/KBIP3/TPM1C1/FDSOUT1
BUZZ
Enable BUZZ
Disable BUZZ
PTB0/TMP2CH0/FDSOUT6
POT
Enable POT
Disable POT
PTC0/SCL/ADC6
TEMP
Enable TEMP Disable TEMP
PTC1/SDA/ADC7
PTB0_SEL
The Fault Detect and Shutdown Output 6 (FDSOUT6) is applied to 5 separate locations on
connector J1. The PTB0_SEL option header allows the user to select the desired location for
use. Refer to the MC9S08SF4 Reference Manual for details on use and configuration of the
Fault Detect and Shutdown module. Figure 6 below shows the connections for thePTB0_SEL
option header.
Figure 6: PTB0_SEL Option Header
● ● 1
Select PTB0_A (J1-13)
● ● 2
Select PTB0_B (J1-15)
● ● 3
Select PTB0_C (J1-17)
● ● 4
Select PTB0_D (J1-19)
● ● 5
Select PTB0_E (J1-33)
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