參數(shù)資料
型號: M68HC16Y1CFC
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, MICROCONTROLLER, PQFP16
封裝: QFP-160
文件頁數(shù): 19/138頁
文件大?。?/td> 784K
代理商: M68HC16Y1CFC
MC68HC16Y1
MOTOROLA
MC68HC16Y1TS/D
115
Test mode functions in conjunction with the SCIM test functions. Test mode is used during factory test
of the MCU.
Writing the STOP bit of RAMMCR causes the SRAM module to enter stop mode. The RAM array is dis-
abled (which allows external logic to decode SRAM addresses, if necessary), but all data is retained. If
VDD falls below VSTBY during stop mode, internal circuitry switches to VSTBY, as in standby mode. Stop
mode is exited by clearing the STOP bit.
The TPURAM array may be used to emulate the microcode ROM in the TPU module. This provides a
means of developing custom TPU code. The TPU selects TPU emulation mode. While in TPU emula-
tion mode, the access timing of the TPURAM module matches the timing of the TPU microinstruction
ROM to ensure accurate emulation. Normal accesses via the IMB are inhibited and the control registers
have no effect, allowing external RAM to emulate the TPURAM at the same addresses. See 4 Time
Processor Unit for more information.
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