CHAPTER 21 FLASH MEMORY
Preliminary User’s Manual U16846EJ1V0UD
347
Table 21-6. Relationship Between FLMD0, FLMD1 Pins and Operation Mode After Reset Release
FLMD0 FLMD1
Operation
Mode
0
Any
Normal operation mode
V
DD
0
Flash memory programming mode
V
DD
V
DD
Setting
prohibited
21.6.3 Selecting communication mode
In the 78K0/KB1+, a communication mode is selected by inputting pulses (up to 11 pulses) to the FLMD0 pin after
the dedicated flash memory programming mode is entered. These FLMD0 pulses are generated by the flash
programmer.
The following table shows the relationship between the number of pulses and communication modes.
Table 21-7. Communication Modes
Standard Setting
Note 1
Communication
Mode
Port
Speed
On Target
Frequency Multiply Rate
Pins Used
Number of
FLMD0 Pulses
UART
(UART6)
UART-ch0 4800
to
76800 bps
Notes 2, 3
TxD6, RxD6
0
3-wire serial I/O
(CSI10)
SIO-ch0
200 kHz to
2 MHz
Note 2
SO10, SI10, SCK10
8
3-wire serial I/O
with handshake
(CSI10 + HS)
SIO-H/S
200 kHz to
2 MHz
Note 2
Arbitrary
2 to 16
MHz
1.0
SO10, SI10, SCK10,
HS/P15
11
Notes 1.
Selection items for Standard settings on Flashpro IV.
2.
The possible setting range differs depending on the voltage. For details, refer to the chapters of electrical
specifications.
3.
Because factors other than the baud rate error, such as the signal waveform slew, also affect UART
communication, thoroughly evaluate the slew as well as the baud rate error.
Caution When UART6 is selected, the receive clock is calculated based on the reset command sent from the
dedicated flash programmer after the FLMD0 pulse has been received.