tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 56

• Manufacturer Part Number: tmp1940cyaf
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

SYSCR0
(0xFFFF_EE00)
SYSCR1
(0xFFFF_EE01)
SYSCR2
(0xFFFF_EE02)
SYSCR3
(0xFFFF_EE03)
5.2
5.2.1
Clock Generator (CG) Registers
System Clock Control Registers
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
High-speed
oscillator
0: Disable
1: Enable
High-speed
oscillator
drive
capability
0: High
1: Low
DRVSOCH DRVOSCL
XEN
15
23
31
7
1
0
Low-speed
oscillator
0: Disable
1: Enable
Low-speed
oscillator
drive
capability
0: High
1: Low
SCOUT
output
select
0: fs
1: fsys
SCOSEL
XTEN
R/W
14
22
30
6
0
0
0
TMP1940CYAF-14
High-speed
oscillator
after exiting
STOP
mode
0: Disable
1: Enable
System
clock
(fsys)
select
0: High-
speed
(fgear)
1: Low-
speed (fs)
Oscillator warm-up time
00: Reserved
01: 2
10: 2
11: 2
WUPT1
SYSCK
RXEN
13
21
29
8
14
16
5
1
0
1
/input frequency
/input frequency
/input frequency
R/W
Low-speed
oscillator
after exiting
STOP
mode
0: Disable
1: Enable
fperiph
select
0: fgear
1: fc
ALE output
width
select
0: fsys
1: fsys
ALESEL
WUPT0
RXTEN
FPSEL
R/W
12
20
28
4
0
0
0
1
0.5
1.5
R/W
R/W
Clock
select after
exiting
STOP
mode
0:
High-speed
1:
Low-speed
High-speed
oscillator
frequency
divide
factor
0:
Divide-by-2
1:
Divide-by-1
Standby mode select
00: Reserved
01: STOP mode
10: SLEEP mode
11: IDLE mode
RSYSCK
DFOSC
STBY1
19
27
11
3
0
0
1
Oscillator
warm-up
period
(WUP)
timer
On writes:
0: Don’t-
care
1: Start
WUP
On reads:
0: Expired
1: Not
expired
STBY0
WUEF
TMP1940CYAF
10
18
26
2
0
1
Prescaler clock select
00: fperiph/4
01: fperiph/2
10: fperiph
11: Reserved
High-speed clock (fc)
gear select
00: fc
01: fc/2
10: fc/4
11: fc/8
PLL lock
0: Locked
1:
Unlocked
PRCK1
GEAR1
LUPFG
17
25
1
9
R
0
1
0
R/W
1: Pins are
driven in
STOP
mode.
PLL lock
time select
0: 2
frequency
1: 2
frequency
PRCK0
GEAR0
LUPTM
DRVE
R/W
R/W
16
12
16
24
0
8
0
1
0
0
/input
/input