Freescale-semiconductor ColdFire MCF52210 Uživatelský manuál Strana 522

  • Stažení
  • Přidat do mých příruček
  • Tisk
  • Strana
    / 576
  • Tabulka s obsahem
  • KNIHY
  • Hodnocené. / 5. Na základě hodnocení zákazníků
Zobrazit stránku 521
Debug Module
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
28-26 Freescale Semiconductor
Results are returned in the two serial transfer cycles after the memory access completes. For any
command performing a byte-sized memory read operation, the upper 8 bits of the response data are
undefined and the referenced data is returned in the lower 8 bits. The next command’s opcode is
sent to the debug module during the final transfer. If a bus error terminates a memory or register
access, error status (S = 1, DATA = 0x0001) returns instead of result data.
28.5.3.3 Command Set Descriptions
The following sections describe the commands summarized in Table 28-20.
NOTE
The BDM status bit (S) is 0 for normally completed commands. S is set for
illegal commands, not-ready responses, and transfers with bus-errors.
Section 28.5.2, “BDM Serial Interface,” describes the receive packet
format.
Freescale reserves unassigned command opcodes for future expansion. Unused command formats in any
revision level perform a NOP and return an illegal command response.
28.5.3.3.1 Read A/D Register (RAREG/RDREG)
Read the selected address or data register and return the 32-bit result. A bus error response is returned if
the CPU core is not halted.
Command/Result Formats:
Command Sequence:
Figure 28-19. RAREG/RDREG Command Sequence
Operand Data: None
Result Data: The contents of the selected register are returned as a longword value,
most-significant word first.
1514131211109876543210
Command 0x2 0x1 0x8 A/D Register
Result D[31:16]
D[15:0]
Figure 28-18. RAREG/RDREG Command Format
RAREG/RDREG
???
NEXT CMD
LS RESULT
NEXT CMD
’NOT READY’
XXX
BERR
XXX
MS RESULT
Zobrazit stránku 521
1 2 ... 517 518 519 520 521 522 523 524 525 526 527 ... 575 576

Komentáře k této Příručce

Žádné komentáře

KVH Industries M9 manuels

Manuels d'utilisation et guides de l'utilisateur pour Antennes satellites KVH Industries M9.
Nous fournissons des manuels en pdf 1 KVH Industries M9 à télécharger gratuitement par type de document : Manuel de l'utilisateur






Plus de produits et de manuels pour Antennes satellites KVH Industries

Modèles Type de document
TracVision S2 Manuel de l'utilisateur   KVH Industries TracVision S2 User's Manual, 66 pages
TracPhone V7 Manuel de l'utilisateur   KVH Industries TracPhone V7 User's Manual, 30 pages
TracVision R4 Manuel de l'utilisateur   KVH Industries TracVision R4 User's Manual, 65 pages