ml671000 Oki Semiconductor, ml671000 Datasheet - Page 8

• Manufacturer Part Number: ml671000
• Description: Oki S Mcus - Ml671000oki S Cmos 32-bit Single-chip Microcontroller With Built-in Usb Device Controller
• Manufacturer: Oki Semiconductor

OVERVIEW OF INTERNAL PERIPHERAL FUNCTIONS
I/O Ports
Timers
Time Base Generator
UART Serial Port
1 Semiconductor
The 64 I/O ports are configured from the 8-bit ports P0 to P7. Each bit of each port can be specified as an input
or output. If specified as an input, the port becomes a high impedance input. In addition to their port function
(primary function), some ports are assigned secondary functions such as an external interface function or an
I/O pin for an internal peripheral.
The timers consist of a 2-channel 16-bit flexible timer and a 2-channel 16-bit general-purpose timer. A count
clock can be selected for each channel.
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The time base generator consists of the time base counter, which drives frequency dividers deriving the time
base signals for on-chip peripherals from the system clock signals, and a watchdog timer, which counts time
base clock cycles and produces a system reset signal when its internal counter overflows.
Functionally the same as the 16550A, the UART serial port is equipped with 16-byte FIFOs for both receive
and transmit, modem control signals, a dedicated baud rate generator, etc.
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Flexible timer
General-purpose timer
Synchronous timer operation
Count clock
Full duplex operation
Independent controls for transmit, receive, line status and data set interrupt
Modem control signals: CTS, DSR, DCD, DTR, RTS and RI
Built-in dedicated baud rate generator
Data length:5, 6, 7, or 8 bits
Stop bit:
Parity:
Detection of receive errors: parity error, framing error, overrun error, or data error of break interrupt
Operating modes: auto-reload timer, compare-output, PWM, capture
Auto-reload timer
Timer channel can be started and stopped in union.
A count clock can be selected for each timer as: 1/1, 1/2, 1/4, 1/8, 1/16, and 1/32 of the system clock,
or as an external clock.
1, 1.5, or 2 bits
odd, even, or none
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ML671000
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