14 User’s Manual U11302EJ4V0UM15.7 Key Scan Flag and Key Scan Data .................................................................................. 31415.7.1 Key scan flag ........................................................................................................................... 31415.7.2 Key scan data .......................................................................................................................... 31415.8 Light Leakage of VFD ......................................................................................................... 31515.9 Display Examples ............................................................................................................... 31715.9.1 Segment type (display mode 1: DSPM05 = 0) ...................................................................... 31815.9.2 Dot type (display mode 1: DSPM05 = 0) ............................................................................... 32015.9.3 Display type in which a segment spans two or more grids(display mode 2: DSPM05 = 1) .............................................................................................. 32215.10 Calculating Total Power Dissipation............................................................................... 32615.10.1 Segment type (display mode 1: DSPM05 = 0) ...................................................................... 32615.10.2 Dot type (display mode 1: DSPM05 = 0) ............................................................................... 32915.10.3 Display type in which a segment spans two or more grids(display mode 2: DSPM05 = 1) .............................................................................................. 332CHAPTER 16 INTERRUPT AND TEST FUNCTIONS .......................................................................... 33516.1 Interrupt Function Types ................................................................................................... 33516.2 Interrupt Sources and Configuration ............................................................................... 33616.3 Interrupt Function Control Registers .............................................................................. 33916.4 Interrupt Servicing Operations ......................................................................................... 34716.4.1 Non-maskable interrupt request acknowledgment operation ................................................ 34716.4.2 Maskable interrupt request acknowledgment operation ........................................................ 35016.4.3 Software interrupt request acknowledgment operation ......................................................... 35216.4.4 Multiple interrupt servicing ...................................................................................................... 35316.4.5 Interrupt request hold .............................................................................................................. 35616.5 Test Functions .................................................................................................................... 35716.5.1 Test function control registers ................................................................................................ 35716.5.2 Test input signal acknowledgment operation ........................................................................ 358CHAPTER 17 STANDBY FUNCTION ................................................................................................... 35917.1 Standby Function and Configuration .............................................................................. 35917.1.1 Standby function ...................................................................................................................... 35917.1.2 Standby function control register ............................................................................................ 36017.2 Standby Function Operations ........................................................................................... 36117.2.1 HALT mode ............................................................................................................................. 36117.2.2 STOP mode ............................................................................................................................. 364CHAPTER 18 RESET FUNCTION ........................................................................................................ 36718.1 Reset Function .................................................................................................................... 367CHAPTER 19μPD78P0208 .................................................................................................................. 37119.1 Internal Memory Size Switching Register ....................................................................... 37219.2 Internal Expansion RAM Size Switching Register ......................................................... 37419.3 PROM Programming ........................................................................................................... 37519.3.1 Operating modes ..................................................................................................................... 37519.3.2 PROM write procedure ........................................................................................................... 37719.3.3 PROM read procedure ............................................................................................................ 38119.4 Screening of One-Time PROM Version ........................................................................... 382
