HD6473228P10V Datasheet, PDF (8/301 Pages) Renesas Technology Corp – Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp

9.2.5 Serial Mode Register (SMR) – H’FFD8.................................................................. 173
9.2.6 Serial Control Register (SCR) – H’FFDA............................................................... 175
9.2.7 Serial Status Register (SSR) – H’FFDC.................................................................. 177
9.2.8 Bit Rate Register (BRR) – H’FFD9 ........................................................................ 179
9.3 Operation .............................................................................................................................. 183
9.3.1 Overview ................................................................................................................. 183
9.3.2 Asynchronous Mode................................................................................................ 184
9.3.3 Synchronous Mode .................................................................................................. 188
9.4 Interrupts............................................................................................................................... 192
9.5 Application Notes ................................................................................................................. 193
Section 10. RAM....................................................................................................................... 197
10.1 Overview............................................................................................................................... 197
10.2 Block Diagram...................................................................................................................... 197
10.3 RAM Enable Bit (RAME) .................................................................................................... 198
10.4 Operation .............................................................................................................................. 198
10.4.1 Expanded Modes (Modes 1 and 2) .......................................................................... 198
10.4.2 Single-Chip Mode (Mode 3) ................................................................................... 199
Section 11. ROM....................................................................................................................... 201
11.1 Overview............................................................................................................................... 201
11.1.1 Block Diagram......................................................................................................... 202
11.2 PROM Mode......................................................................................................................... 202
11.2.1 PROM Mode Setup ................................................................................................. 202
11.2.2 Socket Adapter Pin Assignments and Memory Map............................................... 203
11.3 Programming ........................................................................................................................ 208
11.3.1 Selection of Sub-Modes in PROM Mode................................................................ 208
11.3.2 Writing and Verifying .............................................................................................. 209
11.3.3 Notes on Writing...................................................................................................... 215
11.3.4 Reliability of Written Data ...................................................................................... 215
11.3.5 Erasing of Data ........................................................................................................ 216
11.4 Handling of Windowed Packages......................................................................................... 216
Section 12. Power-Down State..............................................................................................219
12.1 Overview............................................................................................................................... 219
12.2 System Control Register: Power-Down Control Bits .......................................................... 220
12.3 Sleep Mode ........................................................................................................................... 221
12.3.1 Transition to Sleep Mode......................................................................................... 222
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