mb90f377pff-g Fujitsu Microelectronics, Inc., mb90f377pff-g Datasheet - Page 40

• Manufacturer Part Number: mb90f377pff-g
• Description: 16-bit Proprietary Microcontroller
• Manufacturer: Fujitsu Microelectronics, Inc.

40
MB90370/375 Series
(1) Register configuration
(2) Block diagram
Clock Selection Register
Lower Power Consumption Mode Control Register
Address : 0000A1
Address : 0000A0
Clock genera-
tion part
Subclock
generation
circuit
X0A Pin
X1A Pin
Initial value
Initial value
Read/write
Read/write
Interrupt clearing
X0
X1
RST
H
H
Subclock
Divide-
by-4
Pin
Pin
Pin
SCM
STP
Low power consumption mode control register (LPMCR)
15
W
System clock
generation
circuit
STP
R
7
0
1
PLL multiplier
circuit
SLP
MCM
SLP
14
W
R
1
6
0
Clock selector
SPL
Main clock
WS1
2
SPL
R/W
R/W
13
5
0
RST
1
Divide-
by-2
SCM
Clock selection register (CKSCR)
TMD
CPU intermittent
operation selector
MCM
WS0
RST
R/W
12
W
4
1
1
CG1 CG0
Standby
control circuit
WS1
Divide-
by-8
TMD
SCS
R/W
Oscillation stabiliza-
tion wait clearing
11
W
3
1
1
Machine clock
WS0
RESV
2
MCS
CG1
R/W
SCS
R/W
10
Divide-
by-16
2
0
1
2
MCS CS1 CS0
CG0
R/W
CS1
R/W
0
1
0
9
CPU clock
control circuit
Internal reset
generation
circuit
Pin high-
impedance
control circuit
Peripheral
clock control
circuit
Divide-
by-128
Reserved
R/W
CS0
R/W
8
0
0
0
Intermittent cycle
selection
Stop and sleep signals
Stop signal
Divide-
by-4
Timebase timer
CPU clock pulse
Pin Hi-Z control
Internal reset
Peripheral clock
Bit number
CKSCR
Bit number
LPMCR
Oscillation
stabilization
wait time
selector
Divide-
by-4