參數(shù)資料
型號: MC68HSC05C8AFN
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 166/166頁
文件大?。?/td> 1914K
代理商: MC68HSC05C8AFN
Operating Modes
Self-Check Mode
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A — Rev. 5.0
Technical Data
MOTOROLA
Operating Modes
99
11.4 Self-Check Mode
k Mode
Self-check mode is entered upon the rising edge of RESET if the IRQ pin
is at VTST and the TCAP pin is at logic 1.
11.4.1 Self-Check Tests
The self-check read-only memory (ROM) at mask ROM location
$1F00–$1FEF determines if the MCU is functioning properly.These tests
are performed:
1. I/O — Functional test of ports A, B, and C
2. Random-access memory (RAM) — Counter test for each RAM
byte
3. Timer — Test of counter register and OCF bit
4. Serial communications interface (SCI) — Transmission test
checks for RDRF, TDRE, TC, and FE flags
5. Read-only memory (ROM) — Exclusive OR with odd ones parity
result
6. Serial peripheral interface (SPI) — Transmission test checks for
SPIF and WCOL flags
The self-check circuit is shown in Figure 11-2.
相關(guān)PDF資料
PDF描述
MC68HSC05C8CB 8-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PDIP42
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MC68HC05C8AFA 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP48
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