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C5EC3EARCH-RM/D bảng dữ liệu(PDF) 58 Page - NXP Semiconductors |
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C5EC3EARCH-RM/D bảng dữ liệu(HTML) 58 Page - NXP Semiconductors |
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58 / 114 page ![]() 58 CHAPTER 2: SIGNAL DESCRIPTIONS C Test Signals Test signals are described in Table 30. During JTAG, SCLK and SCLKX must remain as differential inputs. No Connection Pins No connection pins are listed in Table 31. Table 30 Miscellaneous Test Signals For JTAG, Scan, and Internal Test Routines SIGNAL NAME PIN # TOTAL TYPE I/O SIGNAL DESCRIPTION JTCK C15 1 LVTTL I PD Test Clock JTMS A14 1 LVTTL I PD Test Mode Select. High selects modes as defined in the IEEE 1149.1 JTAG specification. JTRSTX† A12 1 LVTTL I PD Test Reset (low active) JTDI† B14 1 LVTTL I PD Test Data In JTDO A13 1 LVTTL O Test Data Out JHIGHZ B13 1 LVTTL I PD Turns off all output drivers when High JCLKBYP C14 1 LVTTL I PD 1X or 2X Clock Mode Select. Low selects 1X, High selects 2X. JSE D15 1 LVTTL I PD Scan Enable. High enables scan test. JS00-JS05 D14, A16, D13, C12, A15, B12 6 LVTTL O Scan Out Pins TOTAL PINS 14 Table 31 No Connection Pins SIGNAL NAME PIN # TOTAL TYPE I/O SIGNAL DESCRIPTION NC3 - NC5 B11, A11, A18 3 nc I PD/O Reserved for future functionality TOTAL PINS 3 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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