參數(shù)資料
型號: DEMO9RS08KA2
廠商: Freescale Semiconductor
文件頁數(shù): 130/136頁
文件大?。?/td> 0K
描述: DEMO BOARD FOR 9RS08KA2
產(chǎn)品培訓模塊: Mechatronics
USBSpyder08 Discovery Kit
RS08KA2 Low-End Microcontroller Series
MC9RS08KA8 Microcontroller
標準包裝: 1
系列: RS08
類型: MCU
適用于相關產(chǎn)品: MC9RS08KA2
所含物品: 板,線纜,CD,文檔,樣品 IC
產(chǎn)品目錄頁面: 730 (CN2011-ZH PDF)
相關產(chǎn)品: MC9RS08KA2CSCRTR-ND - IC MCU 8BIT 2K FLASH 8-SOIC
PC9RS08KA2PAE-ND - MCU 8BIT 2KB FLASH RS08 8-DIP
PC9RS08KA2FPE-ND - MCU 8BIT 2KB FLASH RS08 6-VDFN
PC9RS08KA2DWE-ND - MCU 8BIT 2KB FLASH RS08 8-SOIC
MC9RS08KA2CPC-ND - IC MCU 8-BIT 2K FLASH 8-PDIP
MC9RS08KA2CDB-ND - IC MCU 8-BIT 2K FLASH 6-DFN
MC9RS08KA2CSC-ND - IC MCU 8-BIT 2K FLASH 8-SOIC
Modulo Timer (RS08MTIMV1)
MC9RS08KA2 Series Data Sheet, Rev. 4
Freescale Semiconductor
93
11.3.2
MTIM Clock Configuration Register (MTIMCLK)
MTIMCLK contains the clock select bits (CLKS) and the prescaler select bits (PS).
11.3.3
MTIM Counter Register (MTIMCNT)
MTIMCNT is the read-only value of the current MTIM count of the 8-bit counter.
7
6
5
432
1
0
R
0
CLKS
PS
W
Reset:
0
Figure 11-4. MTIM Clock Configuration Register (MTIMCLK)
Table 11-4. MTIMCLK Field Description
Field
Description
5:4
CLKS
Clock Source Select — These two read/write bits select one of four different clock sources as the input to the
MTIM prescaler. Changing the clock source while the counter is active does not clear the counter. The count
continues with the new clock source. Reset clears CLKS to 00.
00
Encoding 0 — Bus clock (BUSCLK).
01
Encoding 1 — Fixed-frequency clock (XCLK).
10
Encoding 3 — External source (TCLK pin), falling edge.
11
Encoding 4 — External source (TCLK pin), rising edge.
3:0
PS
Clock Source Prescaler — These four read/write bits select one of nine outputs from the 8-bit prescaler.
Changing the prescaler value while the counter is active does not clear the counter. The count continues with the
new prescaler value. Reset clears PS to 0000.
0000 Encoding 0 — MTIM clock source
÷ 1.
0001 Encoding 1 — MTIM clock source
÷ 2.
0010 Encoding 2 — MTIM clock source
÷ 4.
0011 Encoding 3 — MTIM clock source
÷ 8.
0100 Encoding 4 — MTIM clock source
÷ 16.
0101 Encoding 5 — MTIM clock source
÷ 32.
0110 Encoding 6 — MTIM clock source
÷ 64.
0111 Encoding 7 — MTIM clock source
÷ 128.
1000 Encoding 8 — MTIM clock source
÷ 256.
All other encodings default to MTIM clock source
÷ 256.
7
6
5
432
1
0
R
COUNT
W
Reset:
0
Figure 11-5. MTIM Counter Register (MTIMCNT)
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