北京芯联科泰电子有限公司 o StartAConditionA –ADeviceASlaveAAddressA[x:7]A –AReadMWriteABitA=ReadA=AN1A–AWaitAforASlaveAACKA–A5AstatusAbitsA –AxApressureA bitsA[N4:8]A – AMasterAACKA – A8ApressureAbitsA[ ⋯ :7]A – AMasterANACKA– AStopAConditionA SA xA gA 9A 4A 5A NA 7A RA AA NgA N9A N4A N5A NNA N7A 9A 8A AA ⋯AxA gA 9A 4A 5A NA 7A NA SA o I5CARead_DF4A–ADataAFetchA4ABytes:A SlaveAreturnsA5ApressureAdataAbytesA