QB-RL78L1C In-Circuit Emulator CHAPTER 4 CAUTIONS
R20UT2703EJ0200 Rev.2.00
Page 33 of 42
Jan 31, 2014
- Change the positive reference voltage on the A/D converter
When change the positive reference voltage, after setting ADREFP1 and ADREFP0,
stabilization wait time of
emulator is different from that of the target device.
Table 4-1 Target devices and stabilization wait time of QB-RL78L1C
ADM2 register ( value after change )
stabilization wait time
ADREFP1
ADREFP0
Target devices
RL78/L1C
Target devices
RL78/L13
QB-RL78L1C
1
0
10
μs
5
μs
1ms
0
0
1
μs
No
1ms
0
1
1
μs
No
1ms
- P122 input characteristics
The P122 input characteristics differ between the target device and the emulator.
Table 4-2. Input Characteristics of P122 Pins
Item
Input Characteristics of P122 Pins
Target device
RL78/L1C
VIH MIN
0.8VDD
（
1.6V
≤
VDD
≤
3.6V
）
VIL MAX
0.2VDD
（
1.6V
≤
VDD
≤
3.6V
）
Target device
RL78/L13
VIH MIN
0.8VDD
（
1.6V
≤
VDD
≤
5.5V
）
VIL MAX
0.2VDD
（
1.6V
≤
VDD
≤
5.5V
）
QB-RL78L1C
VIH MIN
0.7VDD
（
2.7V
≤
VDD
≤
5.5V
）
0.8VDD
（
1.6V
≤
VDD < 2.7V
）
VIL MAX
0.3VDD
（
2.7V
≤
VDD
≤
5.5V
）
0.2VDD
（
1.6V
≤
VDD < 2.7V
）
- Power-on-reset (POR) voltage value
The power-on-reset (POR) voltage value differs from that of the target device.
Table 4-3. Power-on-reset (POR) voltage value
Item
MIN.
TYP.
MAX.
Target device
POR
1.47 V
1.51 V
1.55V
PDR
1.46 V
1.50 V
1.54V
QB-RL78L1C
POR
－
1.54 V
－
PDR
－
1.47 V
－
