Renesas M3A-HS64, User Manual

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M3A-HS64G01 Functions
3.9 IEBus
TM
Interface
Rev. 1.00 Apr 30, 2009
3-23
REJ11J0034-0100
3
3.9 IEBus
TM
Interface
The SH7264 includes an IEBus
TM
controller (IEB). The IEBus
TM
(Inter Equipment Bus
TM
) is the bus for digital data transfer
system on a small scale. The SH7264 IEB pin is connected to the IEBus connector (4-pin, 2.5 mm pitch) via the voltage level
shifter and the IEBus
TM
driver IC on the M3A-HS64G01.
The IEB pin is also used as the SCIF channel 0 pin and the RCAN-TL1 channel 0 pin.
The figure below shows the IEBus
TM
interface block diagram. Table 3.9.1 lists the jumpers setting (JP4, and JP5 on the
M3A-HS64). Table 3.9.2 lists the jumpers setting (JP5, and JP9).
SH7264
PJ1/CRx0/ IERxD /RxD0
PJ0/CTx0/ IETxD /TxD0
RS-232C interface
PJ3/CRx1/IRQ1
PJ2/LCD_M_DISP/CTx1
A0
A1
VccA
B0
B1
IETxD
CTx1
DIR
3.3 V
G#
VccB
5 V
IETxD
IERxD
CTx1
3 V to 5 V
Level shifter
A0
A1
VccA
B0
B1
IERxD
CRx1
DIR
3.3 V
G#
VccB
5 V
5 V to 3 V
Level shifter
IEBus
TM
connector
B4B-XH
→
←
CAN interface
BUS-
BUS+
2 4
JP5
JP4
JP5
JP9
5 V
Expansion connector
5 V
3.3 V
CRx1
JP6
IRQ switch
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
S1
Rout BUS-
BUS+
IEBus
TM
driver
HA12187
Note: Pin names in red indicate the function used.
Figure 3.9.1 IEBus
TM
Interface Block Diagram
Table 3.9.1 Jumpers Setting (JP4, and JP5 on the M3A-HS64)
Number 1-2 2-3
JP4
Selects the TxD0 (SCIF) - default Selects the CTx0 (RCAN-TL1) / IETxD (IEB) pins
JP5
Selects the RxD0 (SCIF) - default Selects the CRx0 (RCAN-TL1) / IERxD (IEB) pins
Table 3.9.2 Jumpers Setting (JP5, and JP9)
Number 1-2 2-3
JP5
Selects the IETxD (IEB) pin Selects the CTx0 (RCAN-TL1) pin - default
JP9
Selects the IERxD (IEB) pin Selects the CRx0 (RCAN-TL1) pin - default