tmp19a61f10xbg TOSHIBA Semiconductor CORPORATION, tmp19a61f10xbg Datasheet - Page 26

• Manufacturer Part Number: tmp19a61f10xbg
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

5.4 CG Registers
SYSCR0
(0xFFFF_EE00)
SYSCR1
(0xFFFF_EE01)
SYSCR2
(0xFFFF_EE02)
SYSCR3
(0xFFFF_EE03)
(Note) Restriction to use clock gear
To activate peripheral I/O, use fc, fc1/2, fc1/4 or fc1/8 for SYSCR1<GEAR2:0>. Otherwise, it cannot
operate properly.
・SYSCK can be switched when XEN is set to "1."
・Don't switch the SYSCK and the GEAR<2:0> simultaneously.
・If the system enters the STOP mode with SYSCR2<DRVOSCH> set at 1 (low capability),
the setting will change to 0 (high capability) after the STOP mode is released.
5.4.1 System Control Registers
Function
Function
Function
Function
Read/Write
Read/Write
Read/Write
Read/Write
bit Symbol
After reset
Bit symbol
After reset
Bit symbol
After reset
Bit symbol
After reset
High-speed
oscillator
0: Stop
1: Oscilla-
tion
This can be
read as “0.”
High-speed
oscillator
current
control
0: High
capability
1: Low
capability
This can be
read as “0.”
DRVOSCH
XEN
R/W
R/W
15
23
31
R
R
7
1
0
0
0
Write “0”.
This can be
read as “0.”
Write “0”.
Select SCOUT output
00:reserved
01:fperiph
10:fsys
11:φT0
SCOSEL1
SYSCKFL
R/W
R/W
R/W
14
22
30
G
R
6
0
0
0
0
TMP19A61(rev 1.0)-5-25
Write “1”.
Write “0”.
Select oscillator warm-up
time
00:no WUP
01:2
10:2
frequency
11:2
SCOSEL0
WUPT1
SYSCK
RXEN
R/W
R/W
R/W
R/W
16
８
14
29
13
21
1
5
1
0
1
/ oscillating frequency
/ oscillating frequency
/ oscillating
Write “1”.
Write “0”.
Select
fperiph
0:fgear
1:fc
WUPT0
FPSEL
R/W
R/W
R/W
R/W
28
12
20
1
4
0
0
0
This can be
read as “0.”
Write “0”.
Select stand-by mode
00:reserved
01:STOP
10:reserved
11:IDLE
This can be read as “0.”
SGEAR
STBY1
R/W
R/W
11
19
27
R
3
0
0
1
0
Write “0”.
Select gear of high-speed clock (fc)
000: fc
001: reserved 101: reserved
010: reserved 110: fc1/4
011: reserved 111: fc1/8
STBY0
GEAR2
WUEF
R/W
R/W
R/W
18
26
10
1
0
2
0
1
100: fc1/2
TMP19A61
R
This can be
read as “0.”
Select prescaler clock
00:fperiph/16
01:fperiph/8
10:fperiph/4
11:fperiph/2
GEAR1
PRCK1
R/W
R/W
17
25
R
9
1
0
0
1
0
1: Drive the
pin even at
the STOP
mode.
GEAR0
PRCK0
DRVE
R/W
R/W
R/W
16
24
8
1
0
0
0
0