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EM78P341NP 数据表(PDF) 27 Page - ELAN Microelectronics Corp |
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EM78P341NP 数据表(HTML) 27 Page - ELAN Microelectronics Corp |
27 / 102 page EM78P341N/342N/343N 8-Bit Microprocessor with OTP ROM Product Specification (V1.0) 12.01.2006 • 21 (This specification is subject to change without further notice) 6.2.6 IOCA0 (IR and TCCC Scale Control Register) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 TCCCSE TCCCS2 TCCCS1 TCCCS0 IRE HF LGP IROUTE Bit 7 (TCCCSE): Scale enable bit for TCCC An 8-bit counter is provided as scale for TCCC and IR-Mode. When in IR-Mode, TCCC counter scale uses the low-time segments of the pulse generated by Fcarrier frequency modulation (see Fig. 6-11 in Section 6.8.2, Function Description). 0 = scale disable bit, TCCC rate is 1:1 1 = scale enable bit, TCCC rate is set as Bit 6 ~ Bit 4 Bit 6 ~ Bit 4 (TCCCS2 ~ TCCCS0): TCCC scale bits The TCCCS2 ~ TCCCS0 bits of the IOCA0 register are used to determine the scale ratio of TCCC as shown below: TCCCS2 TCCCS1 TCCCS0 TCCC Rate 0 0 0 1:2 0 0 1 1:4 0 1 0 1:8 0 1 1 1:16 1 0 0 1:32 1 0 1 1:64 1 1 0 1:128 1 1 1 1:256 Bit 3 (IRE): Infrared Remote Enable bit 0 = Disable IRE, i.e., disable H/W Modulator Function. The IROUT pin is fixed at a high level and the TCCC is an Up Counter. 1 = Enable IRE, i.e., enable H/W Modulator Function. Pin 67 is defined as IROUT. If HP=1, the TCCC counter scale uses the low-time segments of the pulse generated by the Fcarrier frequency modulation (see Fig. 6-11 in Section 6.8.2, Function Description). When HP=0, the TCCC is an Up Counter. Bit 2 (HF): High Frequency bit 0 = PWM application. IROUT waveform is achieved base on the high-pulse width timer and low-pulse width timer which determine the high time width and low time width respectively. 1 = IR application mode. The low-time segments of the pulse generated by the Fcarrier frequency modulation (see Fig. 6-11 in Section 6.8.2, Function Description) Bit 1 (LGP): Long Pulse. 0 = The high-time and low-time registers are valid 1 = The high-time register is ignored. A single pulse is generated. |
类似零件编号 - EM78P341NP |
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类似说明 - EM78P341NP |
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