QB-RL78L1C Datasheet, PDF (36/42 Pages) Renesas Technology Corp – In-Circuit Emulator

QB-RL78L1C In-Circuit Emulator
CHAPTER 4 CAUTIONS
- D+/D- pull-up operation when using USB function module (RL78/L1C only)
D+/D- pull-up operation on QB-RL78L1C differs from the target device.
Target device:
- D+ pull-up is enabled when bit 4 of the system configuration control register (SYSCFG) is “1”
(DPRPU = “1”)
- D- pull-up is enabled when bit 3 of the system configuration control register (SYSCFG) is “1”
(DMRPU = “1”)
QB-RL78L1C:
Either bit 4 (DPRPU) or bit 3 (DMRPU) of the system configuration control register (SYSCFG) is
made "1", D- or D+ is pulled up as follows.
- D+ pull-up is enabled when using the full-speed operation.
- D- pull-up is enabled when using the low-speed operation.
- Operating voltage of USB battery charging detection (RL78/L1C only)
Operation voltage of USB battery charging detection on QB-RL78L1C differs from the target device.
Target device:
Operation voltage is proportional to UVBUS voltage levels because it is generated by the supply
voltage of UVBUS pin.
QB-RL78L1C:
Operation voltage is 5V because it is generated by QB-RL78L1C internal power supply (5V).
R20UT2703EJ0200 Rev.2.00
Jan 31, 2014
Page 36 of 42