MC9S08GB60CFU Freescale Semiconductor, MC9S08GB60CFU Datasheet - Page 148
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MC9S08GB60CFU
Manufacturer Part Number
MC9S08GB60CFU
Description
IC MCU 60K FLASH 20MHZ 64-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheet
1.M68EVB908GB60E.pdf
(290 pages)
Specifications of MC9S08GB60CFU
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
56
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
For Use With
M68DEMO908GB60E - BOARD DEMO MC9S08GB60M68EVB908GB60E - BOARD EVAL FOR MC9S08GB60
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Keyboard Interrupt (KBI) Module
A rising edge is detected when the input signal is seen as a logic 0 during one bus cycle and then a logic 1
during the next cycle.
The KBIMOD control bit can be set to reconfigure the detection logic so that it detects edges and levels.
In KBIMOD = 1 mode, the KBF status flag becomes set when an edge is detected (when one or more
enabled pins change from the deasserted to the asserted level while all other enabled pins remain at their
deasserted levels), but the flag is continuously set (and cannot be cleared) as long as any enabled keyboard
input pin remains at the asserted level. When the MCU enters stop mode, the synchronous edge-detection
logic is bypassed (because clocks are stopped). In stop mode, KBI inputs act as asynchronous
level-sensitive inputs so they can wake the MCU from stop mode.
9.4.3
The KBF status flag becomes set (1) when an edge event has been detected on any KBI input pin. If
KBIE = 1 in the KBI1SC register, a hardware interrupt will be requested whenever KBF = 1. The KBF flag
is cleared by writing a 1 to the keyboard acknowledge (KBACK) bit.
When KBIMOD = 0 (selecting edge-only operation), KBF is always cleared by writing 1 to KBACK.
When KBIMOD = 1 (selecting edge-and-level operation), KBF cannot be cleared as long as any keyboard
input is at its asserted level.
9.5
This section provides information about all registers and control bits associated with the KBI modules.
Refer to the direct-page register summary in the
assignments for all KBI registers. This section refers to registers and control bits only by their names. A
Freescale-provided equate or header file is used to translate these names into the appropriate absolute
addresses.
9.5.1
148
KBI Registers and Control Bits
KBI Interrupt Controls
KBI Status and Control Register (KBI1SC)
Reset:
Read:
Write:
Figure 9-4. KBI Status and Control Register (KBI1SC)
KBEDG7 KBEDG6 KBEDG5 KBEDG4
Bit 7
0
= Unimplemented or Reserved
MC9S08GB/GT Data Sheet, Rev. 2.3
6
0
Memory
5
0
chapter of this data sheet for the absolute address
4
0
KBF
3
0
KBACK
2
0
0
KBIE
Freescale Semiconductor
1
0
KBIMOD
Bit 0
0
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