HD64F38602R Datasheet, PDF (111/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 5 Power-Down Modes
Initial
Bit Bit Name Value R/W Description
3
LSON
0
R/W Selects the system clock (φ) or subclock (φ_SUB) as the
CPU operating clock when watch mode is cleared.
0: The CPU operates on the system clock (φ)
1: The CPU operates on the subclock (φ )
SUB
2
TMA3
0
R/W Selects the mode to which the transition is made after
the SLEEP instruction is executed with bits SSBY and
LSON in SYSCR1 and bits DTON and MSON in
SYSCR2. For details, see table 5.2.
1
MA1
1
R/W Active Mode Clock Select 1 and 0
0
MA0
1
R/W Select the operating clock frequency in active (medium-
speed) mode and sleep (medium-speed) mode. The
MA1 and MA0 bits should be written to in active (high-
speed) mode or subactive mode.
00: φ_OSC/8
01: φ_OSC/16
10: φ /32
OSC
11: φ /64
OSC
Table 5.1 Operating Frequency and Waiting Time
Bit
Operating Frequency and Waiting Time
STS2 STS1 STS0 Waiting States 10 MHz 8 MHz 6 MHz 5 MHz 4.194MHz 3 MHz 2 MHz
0
0
0
8,192 states
819.2
1,024.0*¹ 1,365.3*¹ 1,638.4 1953.3 2,730.7 4,096.0
1
16,384 states
1,638.4 2,048.0 2,730.7 3,276.8 3906.5 5,461.3*¹ 8,192.0*¹
1
0
1,024 states
102.4 128.0 170.7 204.8 244.2 341.3 512.0
1
2,048 states
204.8 256.0 341.3 409.6 488.3 682.7 1,024.0
1
0
0
4,096 states
409.6
512.0
682.7*¹ 819.2*¹ 976.6
1,365.3 2,048.0
1
256 states
25.6
32.0
42.7*²
51.2*²
61.0
85.3*²
128.0*²
1
0
512 states
51.2
64.0*²
85.3*²
102.4
122.1
170.7
256.0
1
16 states
1.6
2.0
2.7
3.2
3.8
5.3
8.0
Notes: Time unit is µs.
: Recommended value when crystal resonator is used (Vcc = 2.7 V to 3.6 V)
: Recommended value when ceramic resonator is used (Vcc = 2.2 V to 3.6 V)
1. Reference value when crystal resonator is used
2. Reference value when ceramic resonator is used
Rev. 3.00 May 15, 2007 Page 79 of 516
REJ09B0152-0300