參數(shù)資料
型號(hào)： ISP1130N
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： Universal Serial Bus compound hub with integrated keyboard controller
中文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PDIP56
封裝： PLASTIC, SDIP-56
文件頁數(shù)： 34/68頁
文件大?。?/td> 1786K
代理商： ISP1130N
Philips Semiconductors
ISP1130
USB compound hub with keyboard controller
Objective specification
Rev. 01 — 23 March 2000
34 of 68
9397 750 06895
Philips Electronics N.V. 2000. All rights reserved.
10. Keyboard controller
10.1 Microcontroller core
The integrated 80C51 microcontroller has 8 kbytes of mask ROM and 256 bytes of
RAM. The I/O ports have been configured as an 8
×
18 line keyboard scan matrix.
Interfacing to the USB hub is done via 3 registers (Command, Data, Status), which
are accessible via the external data memory address space (MOVX instruction).
The keyboard firmware resides in the ROM and enumerates the embedded function
as ‘HID compatible keyboard device’ during hub initialization.
The microcontroller runs on a 12 MHz clock (f
MCU_CLOCK
), derived from the PLL
oscillator. A watchdog timer resets the microcontroller in case of a software hang-up.
10.2 Memory map
10.2.1
Data memory
The internal data memory of ISP1130 is divided into two physically separate areas:
256 bytes RAM and 128 bytes of Special Function Registers (SFRs). Addressing is
done as follows (see
Figure 5
):
RAM (00H to 7FH)
: direct and indirect addressing; for indirect addressing registers
R0 and R1 of the selected register bank are used as address pointers
RAM (80H to FFH)
: indirect addressing, using registers R0 and R1 of the selected
register bank as address pointers
Table 46: Transaction error codes
Error code
(Binary)
0000
no error
0001
PID encoding error; bits 7 to 4 are not the inverse of bits 3 to 0
0010
PID unknown; encoding is valid, but PID does not exist
0011
unexpected packet; packet is not of the expected type (token, data, or
acknowledge), or is a SETUP token to a non-control endpoint
0100
token CRC error
0101
data CRC error
0110
time-out error
0111
babble error
1000
unexpected end-of-packet
1001
sent or received NAK (Not AcKnowledge)
1010
sent Stall; a token was received, but the endpoint was stalled
1011
overflow; the received packet was larger than the available buffer space
1100
sent empty packet (ISO only)
1101
bit stuffing error
1110
sync error
1111
wrong (unexpected) toggle bit in DATA PID; data was ignored
Description
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相關(guān)代理商/技術(shù)參數(shù)
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ISP1160 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller
ISP1160BD 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller
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ISP1160BD/01 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Embedded Universal Serial Bus Host Controller
ISP1160BD/01,118 功能描述:USB 接口集成電路 USB HOST CTRL RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
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