Zilog ZUSBOPTS - Manual (Page 21)

UM026203-0115 MCU Module
MultiMotor Series Development Kit
User Manual
14
I
2
C Connector
On some MCU modules, a 4-pin connector is provided to access the I
2
C functions of the
MCU. Figure 8 shows the I
2
C connector pin layout for the Z51F3220 MCU Module.
Table 6 identifies the I
2
C connector pin signals and their functions.
5 V
IN
Connector
For programming and debugging purposes, each MCU Module can be powered using a
bench power supply without being attached to the MultiMotor Series Development Board.
To power up the MCU Module in this manner, connect 5 V DC to the 5 V
IN
connector and
ground, as indicated in Table 1 on page 8.
Figure 8. I
2
C Connector, Z51F3220 MCU Module
Table 6. I
2
C Connector
Signal Pin
Direction
(With Respect
To The MCU) Description
V
CC
_5V 1 N/A 5V DC power.
SDA 2 I/O Data.
SCL 3 I/O Clock.
GND 4 N/A Ground.