| 전자부품 데이터시트 검색엔진 |
|
TMP86FS28DFG 데이터시트(PDF) 40 Page - Toshiba Semiconductor |
|
|
|||||||||||||||||||||||||||||
TMP86FS28DFG 데이터시트(HTML) 40 Page - Toshiba Semiconductor |
|
40 / 272 page ![]() Page 28 2. Operational Description 2.2 System Clock Controller TMP86FS28DFG 2.2.4.4 SLOW mode SLOW mode is controlled by the system control register 2 (SYSCR2). The following is the methods to switch the mode with the warm-up counter. (1) Switching from NORMAL2 mode to SLOW1 mode First, set SYSCR2<SYSCK> to switch the main system clock to the low-frequency clock for SLOW2 mode. Next, clear SYSCR2<XEN> to turn off high-frequency oscillation. Note: The high-frequency clock can be continued oscillation in order to return to NORMAL2 mode from SLOW mode quickly. Always turn off oscillation of high-frequency clock when switching from SLOW mode to stop mode. Example 1 :Switching from NORMAL2 mode to SLOW1 mode. SET (SYSCR2). 5 ; SYSCR2<SYSCK> ← 1 (Switches the main system clock to the low-frequency clock for SLOW2) CLR (SYSCR2). 7 ; SYSCR2<XEN> ← 0 (Turns off high-frequency oscillation) Example 2 :Switching to the SLOW1 mode after low-frequency clock has stabilized. SET (SYSCR2). 6 ; SYSCR2<XTEN> ← 1 LD (TC3CR), 43H ; Sets mode for TC4, 3 (16-bit mode, fs for source) LD (TC4CR), 05H ; Sets warming-up counter mode LDW (TTREG3), 8000H ; Sets warm-up time (Depend on oscillator accompanied) DI ; IMF ← 0 SET (EIRE). 5 ; Enables INTTC4 EI ; IMF ← 1 SET (TC4CR). 3 ; Starts TC4, 3 : PINTTC4: CLR (TC4CR). 3 ; Stops TC4, 3 SET (SYSCR2). 5 ; SYSCR2<SYSCK> ← 1 (Switches the main system clock to the low-frequency clock) CLR (SYSCR2). 7 ; SYSCR2<XEN> ← 0 (Turns off high-frequency oscillation) RETI : VINTTC4: DW PINTTC4 ; INTTC4 vector table |
|
링크 URL |
| ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크 투 데이터시트 | 링크교환 | 제조사별 검색 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |