UPD78F0138 NEC, UPD78F0138 Datasheet - Page 385

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

Notes 1.
Item
System clock
CPU
Port (latch)
16-bit timer/event counter 00
16-bit timer/event counter 01
8-bit timer/event counter 50
8-bit timer/event counter 51
8-bit timer H0
8-bit timer H1
Watch timer
Watchdog
timer
A/D converter
Serial
interface
Clock monitor
Multiplier/divider
Power-on-clear function
Low-voltage detection function
External interrupt
2.
3.
4.
HALT Mode Setting
Ring-OSC cannot
be stopped
Ring-OSC can be
stopped
UART0
UART6
CSI10
CSI11
When “Stopped by software” is selected for Ring-OSC by a mask option and Ring-OSC is stopped by
software (for mask options, see CHAPTER 25 MASK OPTIONS).
µ
“Ring-OSC cannot be stopped” or “Ring-OSC can be stopped by software” can be selected by a mask
option.
When “POC used” is selected by a mask option.
PD780133, 780134, 78F0134, 780136, 780138, and 78F0138 only.
Note 2
Note 3
Note 4
Note 3
Note 2
Clock supply to the CPU is stopped.
Operation stopped
Status before HALT mode was set is retained
Operable
Operable
Operable
Operable
Operable
Operable
Operable
Operable
Operation stopped
Operable
Operable
Operable
Operable
Operable
Operable
Operable
Operable
Operable
Operable
Oscillation Continues
Table 19-2. Operating Statuses in HALT Mode (2/2)
When Ring-OSC
When X1 Input Clock Oscillation Continues
When HALT Instruction Is Executed While CPU Is Operating on Subsystem Clock
CHAPTER 19 STANDBY FUNCTION
User’s Manual U16228EJ2V0UD
Operable only when the
X1 input clock is selected
as the count clock
Operation stopped
Oscillation Stopped
When Ring-OSC
−
Note 1
Operation stopped
Operation stopped
Operable only when TI50 is selected as the count clock
Operable only when TI51 is selected as the count clock
Operable only when TM50 output is selected as the
count clock during 8-bit timer/event counter 50
operation
Operable only when f
is selected as the count
clock
Operable only when subsystem clock is selected
Operable
Not operable
Operable only when TM50 output is selected as the
serial clock during TM50 operation
Operable only when external clock is selected as the
serial clock
Operable only when external clock is selected as the
serial clock
Operation stopped
Oscillation Continues
When Ring-OSC
When X1 Input Clock Oscillation Stopped
R
/2
7
Operation stopped
Oscillation Stopped
When Ring-OSC
−
Note 1
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