NEC V850ES/KE1+ User Manual page 466

Note
SPIE0
0 Disable
1 Enable
Condition for clearing (SPIE0 bit = 0)
• Cleared by instruction
• Reset
Note
WTIM0
0 Interrupt request is generated at the eighth clock's falling edge.
Master mode: After output of eight clocks, clock output is set to low level and wait is set.
Slave mode: After input of eight clocks, the clock is set to low level and wait is set for master device.
1 Interrupt request is generated at the ninth clock's falling edge.
Master mode: After output of nine clocks, clock output is set to low level and wait is set.
Slave mode: After input of nine clocks, the clock is set to low level and wait is set for master device.
An interrupt is generated at the falling edge of the ninth clock during address transfer independently of the setting of this
bit. The setting of this bit is valid when the address transfer is completed. When in master mode, a wait is inserted at
the falling edge of the ninth clock during address transfers. For a slave device that has received a local address, a wait
is inserted at the falling edge of the ninth clock after ACK is issued. However, when the slave device has received an
extension code, a wait is inserted at the falling edge of the eighth clock.
Condition for clearing (WTIM0 bit = 0)
• Cleared by instruction
• Reset
Note
ACKE0
0 Disable ACK.
1 Enable ACK. During the ninth clock period, the SDA0 line is set to low level.
The ACKE0 bit setting is invalid for address reception. In this case, ACK is generated when the addresses match.
However, the ACKE0 bit setting is valid for address reception of the extension code.
Condition for clearing (ACKE0 bit = 0)
• Cleared by instruction
• Reset
Note This flag's signal is invalid when the IICE0 bit = 0.
466
CHAPTER 16 I
Enable/disable generation of interrupt request when stop condition is detected
Control of wait and interrupt request generation
Acknowledgment control
User's Manual U16896EJ2V0UD
2
C BUS
Condition for setting (SPIE0 bit = 1)
• Set by instruction
Condition for setting (WTIM0 bit = 1)
• Set by instruction
Condition for setting (ACKE0 bit = 1)
• Set by instruction
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