 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
7516 Datasheet(PDF) 49 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
7516 Datasheet(HTML) 49 Page - Renesas Technology Corp |
|
|
49 / 63 page  48 SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS 7516 Group (Spec.H) Fig. 56 State transitions of system clock CM4 : Port Xc switch bit 0 : I/O port function (stop oscillating) 1 : XCIN-XCOUT oscillating function CM5 : Main clock (XIN- XOUT) stop bit 0 : Operating 1 : Stopped CM7, CM6: Main clock division ratio selection bits b7 b6 0 0 : φ = f(XIN)/2 ( High-speed mode) 0 1 : φ = f(XIN)/8 (Middle-speed mode) 1 0 : φ = f(XCIN)/2 (Low-speed mode) 1 1 : Not available Notes Reset C M 4 “0 ” ←→ “1 ” C M 6 “1 ” ←→ “0 ” C M 4 “1 ” ←→ “0 ” C M 6 “1 ” ←→ “0 ” CM6 “1” ←→ “0” CM6 “1” ←→ “0” CPU mode register b7 b4 CM 7 “0 ” ←→ “1 ” CM 6 “1 ” ←→ “0 ” (CPUM : address 003B16) CM7 = 0 CM6 = 1 CM5 = 0 (8 MHz oscillating) CM4 = 0 (32 kHz stopped) Middle-speed mode (f( φ) = 1 MHz) CM7 = 0 CM6 = 1 CM5 = 0 (8 MHz oscillating) CM4 = 1 (32 kHz oscillating) Middle-speed mode (f( φ) = 1 MHz) CM7 = 0 CM6 = 0 CM5 = 0 (8 MHz oscillating) CM4 = 0 (32 kHz stopped) High-speed mode (f( φ) = 4 MHz) CM7 = 1 CM6 = 0 CM5 = 0 (8 MHz oscillating) CM4 = 1 (32 kHz oscillating) Low-speed mode (f( φ)=16 kHz) CM7 = 1 CM6 = 0 CM5 = 1 (8 MHz stopped) CM4 = 1 (32 kHz oscillating) Low-speed mode (f( φ)=16 kHz) CM7 = 0 CM6 = 0 CM5 = 0 (8 MHz oscillating) CM4 = 1 (32 kHz oscillating) High-speed mode (f( φ) = 4 MHz) 1 : Switch the mode by the allows shown between the mode blocks. (Do not switch between the modes directly without an allow.) 2 : The all modes can be switched to the stop mode or the wait mode and return to the source mode when the stop mode or the wait mode is ended. 3 : Timer operates in the wait mode. 4 : When bit 0 of MISRG is “0” and the stop mode is ended, a delay of approximately 1 ms occurs by connecting timer 1 in middle/high-speed mode. 5 : When bit 0 of MISRG is “0” and the stop mode is ended, the following is performed. (1) After the clock is restarted, a delay of approximately 250 ms occurs in low-speed mode if Timer 12 count source selection bit is “0”. (2) After the clock is restarted, a delay of approximately 16 ms occurs in low-speed mode if Timer 12 count source selection bit is “1”. 6 : Wait until oscillation stabilizes after oscillating the main clock XIN before the switching from the low-speed mode to middle/high-speed mode. 7 : The example assumes that 8 MHz is being applied to the XIN pin and 32 kHz to the XCIN pin. φ indicates the internal clock. |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
