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ADE75 数据表(PDF) 142 Page - Analog Devices |
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ADE75 数据表(HTML) 142 Page - Analog Devices |
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142 / 148 page  ADE75xx/ADE71xx Preliminary Technical Data Rev. PrE | Page 142 of 148 UART transmit signal or a low power signal to drive a LED. The modulation can be enabled or disabled with the MOD38EN bit in the CFG SFR. The 38 kHz modulation is available on eight pins, selected by the MOD38[7:0] bits in the Extended Port Configuration SFR (EPCFG, 0x9F). I/O SFR REGISTER LIST Table 140. Extended Port Configuration SFR (EPCFG, 0x9F) Bit Location Bit Mnemonic Default Value Description 7 MOD38_FP21 0 Enable 38kHz modulation on P1.6/FP21 pin 6 MOD38_FP22 0 Enable 38kHz modulation on P1.5/FP22 pin 5 MOD38_FP23 0 Enable 38kHz modulation on P1.4/FP23/T2 pin 4 MOD38_TxD 0 Enable 38kHz modulation on P1.1/Tx pin 3 MOD38_CF1 0 Enable 38kHz modulation on P0.2/CF1/RTCCAL pin 2 MOD38_SSb 0 Enable 38kHz modulation on P0.7/SS/T1pin 1 MOD38_MISO 0 Enable 38kHz modulation on P0.5/MISO pin 0 MOD38_CF2 0 Enable 38kHz modulation on P0.3/CF2 pin Table 141. Port 0 Weak pull-up enable SFR (PINMAP0, 0xB2) Bit Location Bit Mnemonic Default Value Description 7 PINMAP0.7 0 The weak pull-up on P0.7 is disabled when this bit is set 6 PINMAP0.6 0 The weak pull-up on P0.6 is disabled when this bit is set 5 PINMAP0.5 0 The weak pull-up on P0.5 is disabled when this bit is set 4 PINMAP0.4 0 The weak pull-up on P0.4 is disabled when this bit is set 3 PINMAP0.3 0 The weak pull-up on P0.3 is disabled when this bit is set 2 PINMAP0.2 0 The weak pull-up on P0.2 is disabled when this bit is set 1 PINMAP0.1 0 The weak pull-up on P0.1 is disabled when this bit is set 0 PINMAP0.0 0 The weak pull-up on P0.0 is disabled when this bit is set Table 142. Port 1 Weak pull-up enable SFR (PINMAP1, 0xB3) Bit Location Bit Mnemonic Default Value Description 7 PINMAP1.7 0 The weak pull-up on P1.7 is disabled when this bit is set 6 PINMAP1.6 0 The weak pull-up on P1.6 is disabled when this bit is set 5 PINMAP1.5 0 The weak pull-up on P1.5 is disabled when this bit is set 4 PINMAP1.4 0 The weak pull-up on P1.4 is disabled when this bit is set 3 PINMAP1.3 0 The weak pull-up on P1.3 is disabled when this bit is set 2 PINMAP1.2 0 The weak pull-up on P1.2 is disabled when this bit is set 1 PINMAP1.1 0 The weak pull-up on P1.1 is disabled when this bit is set 0 PINMAP1.0 0 The weak pull-up on P1.0 is disabled when this bit is set Table 143. Port 2 Weak pull-up enable SFR (PINMAP2, 0xB4) Bit Location Bit Mnemonic Default Value Description 7 - 6 Reserved 0 Reserved. Should be left cleared 5 PINMAP2.5 0 The weak pull-up on Reset is disabled when this bit is set 4 Reserved 0 The weak pull-up on EA is disabled when this bit is set 3 PINMAP2.3 0 Reserved. Should be left cleared 2 PINMAP2.2 0 The weak pull-up on P2.2 is disabled when this bit is set 1 PINMAP2.1 0 The weak pull-up on P2.1 is disabled when this bit is set 0 PINMAP2.0 0 The weak pull-up on P2.0 is disabled when this bit is set |
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