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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

μs

1ms

μs

1ms

μs

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

－

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