JPEG codec configuration register 2
NMCU | Number of MCUs For encoding: this field defines the number of MCU units minus 1 to encode. For decoding: this field indicates the number of complete MCU units minus 1 to be decoded (this field is updated after the JPEG header parsing). If the decoded image size has not a X or Y size multiple of 8 or 16 (depending on the sub-sampling process), the resulting incomplete or empty MCU must be added to this value to get the total number of MCUs generated. |