upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 270

• Manufacturer Part Number: upd78f0730
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

(5) SO10 output (see (a) in Figure 11-1)
11.5 Caution for Serial Interface CSI10
(1) Standby mode
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The status of the SO10 output is as follows if bit 7 (CSIE10) of serial operation mode register 10 (CSIM10) is
cleared to 0.
To resume the operation from the standby status, clear bit 2 (CSIIF10) of interrupt request flag register 0H (IF0H)
to 0.
Notes 1.
Caution If a value is written to TRMD10, DAP10, and DIR10, the output value of SO10 changes.
TRMD10 = 0
TRMD10 = 1
TRMD10
2.
The actual output of the SO10/P12 pin is determined according to PM12 and P12, as well as
the SO10 output.
Status after reset
Note 2
DAP10 = 0
DAP10 = 1
CHAPTER 11 SERIAL INTERFACE CSI10
DAP10
Preliminary User’s Manual U19014EJ1V0UD
Table 11-3. SO10 Output Status
−
DIR10 = 0
DIR10 = 1
DIR10
−
−
Outputs low level
Value of SO10 latch
(low-level output)
Value of bit 7 of SOTB10
Value of bit 0 of SOTB10
SO10 Output
Note 2
Note 1