M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 360
M37702E6BFS
Manufacturer Part Number
M37702E6BFS
Description
EPROM MCU/8BIT CMOS EMULATION CH
Manufacturer
Renesas Electronics America
Datasheet
1.M37702E6BFS.pdf
(524 pages)
Specifications of M37702E6BFS
Accessory Type
Emulator EPROM MCU
For Use With/related Products
7702
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M37702E6BFS
Manufacturer:
MITSUBISHI/三菱
Quantity:
20 000
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APPLICATION
17.1 Memory expansion
17–26
17.1.5 Example of I/O expansion
(1) Example of port expansion circuit using M66010FP
Figure 17.1.21 shows an example of a port expansion circuit using the M60010FP. Use 1.923 MHz
or less frequency for Serial I/O transfer clock.
Serial I/O control in this expansion example is described below.
In this example, 8-bit data transmission/reception is performed 3 times by using UART0 and 24-bit
port expansion is realized. Setting of UART0 is described below.
The control procedure is described below.
Figure 17.1.22 shows serial transfer timing between M37702 and M66010FP.
signal.)
Output “H” level from port P4
Clock synchronous serial I/O mode; Transmission/Reception enable state
Selected internal clock. Transfer clock frequency of 1.5625 MHz.
LSB first
Output “L” level from port P4
Output “L” level from port P4
Transmit/Receive 24-bit data by using UART0.
Output “H” level from port P4
5
4
5
4
. (Expansion I/O ports of M66010FP become floating state by this
.
.
.
7702/7703 Group User’s Manual
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