mc9s08en32 Freescale Semiconductor, Inc, mc9s08en32 Datasheet - Page 25

• Manufacturer Part Number: mc9s08en32
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

2.2
Figure 2-3
2.2.1
V
I/O buffer circuitry and to an internal voltage regulator. The internal voltage regulator provides regulated
lower-voltage source to the CPU and other internal circuitry of the MCU.
Freescale Semiconductor
DD
NOTES:
and V
1. External crystal circuit not
2. RESET pin can only be used to
3. RC filter on RESET pin
4. For 32-pin and 48-pin
required if using the internal
clock option.
reset into user mode, you can
not enter BDM using RESET
pin. BDM can be entered by
holding MS low during POR or
writing a 1 to BDFR in SBDFR
with MS low after issuing BDM
command.
recommended for noisy
environments.
packages: V
double bonded to V
V
REFL
Recommended System Connections
V
shows pin connections that are common to MC9S08EN32 Series application systems.
SS
DD
Power
OPTIONAL
MANUAL
C1
respectively.
RESET
are the primary power supply pins for the MCU. This voltage source supplies power to all
BACKGROUND HEADER
DDA
5 V
SYSTEM
POWER
and V
+
Figure 2-3. Basic System Connections (Shown in 48-Pin Package)
X1
REFH
SSA
10 μF
R
C
and
F
BLK
are
+
C2
PTG0/EXTAL
R
PTG1/XTAL
S
TPM1CLK
V
DD
MC9S08EN32 Series Data Sheet, Rev. 3
PTF4
PTF5
4.7 kΩ–10 kΩ
0.1 μF
C
C
0.1 μF
0.1 μF
BY
BY
V
V
V
V
V
V
PORT
PORT
DD
SS
DDA
REFH
REFL
SSA
G
F
BKGD/MS
RESET
MC9S08EN32
IRQ
PORT
PORT
PORT
PORT
B
D
A
E
Chapter 2 Pins and Connections
PTB2/PIB2/ADP10
PTB3/PIB3/ADP11
PTB4/PIB4
PTB5/PIB5
PTB6/PIB6
PTB7/PIB7
PTA0/PIA0/ADP0/MCLK
PTA1/PIA1/ADP1/ACMP1+
PTA2/PIA2/ADP2/ACMP1-
PTA3/PIA3/ADP3/ACMP1O
PTA4/PIA4/ADP4
PTA5/PIA5/ADP5
PTA6/PIA6/ADP6
PTA7/PIA7/ADP7/IRQ
PTB0/PIB0/ADP8
PTB1/PIB1/ADP9
PTD2/PID2/TPM1CH0
PTD3/PID3/TPM1CH1
PTD4/PID4/TPM1CH2
PTD5/PID5/TPM1CH3
PTD0/PID0
PTD1/PID1
PTD6/PID6
PTD7/PID7
PTE0/TxD1
PTE1/RxD1
PTE2/SS
PTE3/SPSCK
PTE4/MOSI
PTE5/MISO
PTE6
PTE7
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