tmp19a43fzxbg TOSHIBA Semiconductor CORPORATION, tmp19a43fzxbg Datasheet - Page 337

• Manufacturer Part Number: tmp19a43fzxbg
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Note3: Procedures for using key inputs without pull-up resistors
Note: Ensure that fs is operating before attempting to enable dynamic pull-up by setting DPE to 1.
A) When setting key inputs first after powering up the device
B) When modifying the active condition for a key input during operation
C) When enabling a key input during operation
If DPE is set to 1 when fs is not operating, key inputs cannot be detected.
1) Set KWUPCNT (PE = 0, DPE = 0).
2) Set the active conditions using the KWUPSTn corresponding to the key inputs to be used.
3) Clear the interrupt request using KWUPCLR.
4) Set the KWUPSTn<KEYnEN> corresponding to the key inputs to be used to 1.
5) Set the CG and INTC (refer to Section 3.4, “Interrupts” for details).
1) Disable key interrupts in the INTC (IMC1<18:16> = 000).
2) Modify the active condition for the key input using the corresponding KWUPSTn.
3) Clear the interrupt request using KWUPCLR.
4) Enable key interrupts in the INTC (set IMC1<18:16> to an appropriate level).
1) Disable key interrupts in the INTC (IMC1<18:16> = 000).
2) Set the active condition using the KWUPSTn corresponding to the key input to be used.
3) Clear the interrupt request using KWUPCLR.
4) Set the KWUPSTn<KEYnEN> corresponding to the key input to be used to 1.
5) Enable key interrupts in the INTC (set IMC1<18:16> to an appropriate level).
TMP1942CY/CZ-336
TMP1942CY/CZ