DEMO9S08EL32 Freescale Semiconductor, DEMO9S08EL32 Datasheet - Page 165

• Manufacturer Part Number: DEMO9S08EL32
• Description: BOARD DEMO FOR 9S08 EL MCU
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S08EL32

• Contents: Evaluation Board
• Processor To Be Evaluated: MC9S08EL32
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 12 V
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: S08EL
• Rohs Compliant: Yes
• For Use With/related Products: MC9S08EL32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 11
Inter-Integrated Circuit (S08IICV2)
11.1
The inter-integrated circuit (IIC) provides a method of communication between a number of devices. The
interface is designed to operate up to 100 kbps with maximum bus loading and timing. The device is
capable of operating at higher baud rates, up to a maximum of clock/20, with reduced bus loading. The
maximum communication length and the number of devices that can be connected are limited by a
maximum bus capacitance of 400 pF.
11.1.1
The IIC module pins, SDA and SCL, can be repositioned under software control using IICPS in SOPT1,
as as shown in
operation.
Figure 11-1
highlighted.
Freescale Semiconductor
Introduction
Module Configuration
shows the MC9S08EL32 Series and MC9S08SL16 Series block diagram with the IIC module
The SDA and SCL should not be driven above V
pseudo-open-drain containing a protection diode to V
Table
11-1. This bit selects which general-purpose I/O ports are associated with IIC
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
SOPT1[IICPS]
0 (default
1
Table 11-1. IIC Position Options
Port Pin for SDA
NOTE
PTB6
PTA2
DD
Port Pin for SCL
. These pins are
DD
PTB7
PTA3
.
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