SH7050 Datasheet, PDF (19/841 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH RISC engine Family/

Section 20 RAM .................................................................................................................. 639
20.1 Overview........................................................................................................................... 639
20.2 Operation .......................................................................................................................... 640
Section 21 Power-Down State ......................................................................................... 641
21.1 Overview........................................................................................................................... 641
21.1.1 Power-Down States.............................................................................................. 641
21.1.2 Pin Configuration................................................................................................. 643
21.1.3 Related Register ................................................................................................... 643
21.2 Register Descriptions ........................................................................................................ 644
21.2.1 Standby Control Register (SBYCR) .................................................................... 644
21.2.2 System Control Register (SYSCR) ...................................................................... 645
21.3 Hardware Standby Mode .................................................................................................. 646
21.3.1 Transition to Hardware Standby Mode ................................................................ 646
21.3.2 Exit from Hardware Standby Mode ..................................................................... 646
21.3.3 Hardware Standby Mode Timing......................................................................... 646
21.4 Software Standby Mode.................................................................................................... 647
21.4.1 Transition to Software Standby Mode ................................................................. 647
21.4.2 Canceling the Software Standby Mode................................................................ 649
21.4.3 Software Standby Mode Application Example.................................................... 650
21.5 Sleep Mode ....................................................................................................................... 651
21.5.1 Transition to Sleep Mode..................................................................................... 651
21.5.2 Canceling Sleep Mode ......................................................................................... 651
Section 22 Electrical Characteristics.............................................................................. 653
22.1 Absolute Maximum Ratings ............................................................................................. 653
22.2 DC Characteristics ............................................................................................................ 654
22.2.1 Notes on Using..................................................................................................... 656
22.3 AC Characteristics ............................................................................................................ 657
22.3.1 Clock Timing ....................................................................................................... 657
22.3.2 Control Signal Timing ......................................................................................... 659
22.3.3 Bus Timing .......................................................................................................... 662
22.3.4 Direct Memory Access Controller Timing .......................................................... 666
22.3.5 Advanced Timer Unit Timing and Advanced Pulse Controller Timing .............. 668
22.3.6 I/O Port Timing.................................................................................................... 669
22.3.7 Watchdog Timer Timing...................................................................................... 670
22.3.8 Serial Communication Interface Timing.............................................................. 670
22.3.9 A/D Converter Timing......................................................................................... 671
22.3.10 Measuring Conditions for AC Characteristics ..................................................... 673
22.4 A/D Converter Characteristics .......................................................................................... 674
Rev. 5.00 Jan 06, 2006 page xix of xx