Iebus Tm Interface - Renesas M3A-HS64 User Manual

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